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Owen Guns Bulletin August 2009 Edition 23

Blog August 16, 2009

Welcome to the Twenty Third Edition of the Owen Guns Bulletin.


Scroll down for another Free Firearm Manual &
A Free External Ballistics Calculator for all Components,
Not Bullet or Powder Brand Specific.

We are currently publishing our new website at www.owenguns.com
Where we are in the process of listing 1000s of rifles,shotguns, handguns, accessories, and gun parts that we have for sale. Visit the website now. We also have shooting articles and important firearm information for the shooting enthusiast. Take away free gun photos and free firearm images for your gun gallery collection. New firearm related material being added every day.

Any Inquiries on any products phone 07 54824099  or  07 54825070 or email owenguns@spiderweb.com.au

Fortnightly Specials

Special Prices can only be held for 14 days from the release of this Bulletin.

Lee Challenger Kit

Includes Sold Cast ‘O’ Frame Press, Scales, Powder Measure, Case Trimmers, Case Lube, Auto Primes and Powder Funnel.
The Breech Lock, Challenger Kit, A Reloading Kit Gift at $199.


Plus it includes  Lee Auto Primer all for $199. plus freight.

Berry Ammunition Boxes 50s Special Price and Special Size .300 WSM $9.50 and .233 WSSM $8.00 each.



Bushnell Focus Free Binoculars $125.


Bushnell 12×50 Focus Free Binoculars $125.00 plus post.

Marksman Lazer Hawk Sling Shots $30. plus post


Marksman Lazer Hawk Sling Shots $30. plus post

Spotting Scope



Bad weather, rough handling. Heavy, repeated recoil. It’s all part of hunting, so your Leupold Rifleman is built to take it. You also get a bright, clear sight picture for precise targeting each and every time, even in low light conditions. Mount a Rifleman on your favourite rifle and hunt with confidence.

Leupold ScopeTINYAdds

• All Leupold Golden Ring optics are covered by our Full Lifetime Guarantee

• For more information on construction or use of your Leupold Rifleman riflescope, email owenguns@spiderweb.com.au

• Incredibly rugged – the Riflemans 1″ maintube aircraft-grade aluminum to withstand heavy, repeated recoil.

• 100% waterproof; filled with bone-dry nitrogen and sealed for waterproof integrity.

• The Wide Duplex reticle is designed for a variety of hunting and shooting applications.

• Ample eye relief protects your eye from heavy recoil.

• Outstanding repeatable accuracy.

• Elevation and windage adjustment dials marked in ½ MOA increments.

• Fully coated lenses transmit a bright sight picture, even in low light conditions.

The Norinco JW 105. in .223 Remington


The Norinco JW 105. in .223 Remington.

This is the (Jain Way) JW Model 105, Sometimes called Norinco. These rifles are made in the same factory that manufactures the now famous JW 15 .22 rifle (the Brno Mod One Copy) if you have had a JW15 or know of anyone who had one, you will know that they shoot sometimes better than the rifle they imitiated. These JW105 s are in .223 Remington calibre and have a five shot detachable magazine. They also come with Weaver style mount bases and Quick Detachable studs for QD sling swivels  If you look carefully at the close up photograph you will notice a shiny silver colour, at the breech face,the camera has picked up the chrome plating from inside the chamber. The Chinese are the only non-military manufactures that can afford the chrome process of plating the Barrels and Chambers. They have also chromed the forward section of the Bolt. Chrome plating gives the best protection against erosion and corrosion than anything else besides regualr cleaning. The JW 105 is a copy of the Geveram that was very popular in the 1950s and 1960s, they were very good quality but I believe that Gevarm had to stop making them as the were too expensive to produce.
These are the best value .223 Remington centre-fire, repeating rifle on the market.

Brand New $460

The Range Officer Handbook

The Range Officers Handbook pay by Pay Pal see Bulletin Special Announcement Page


As already purchased by members of all Shooting Organisations.

rangeofficersmal phototiny1

The Range Officers Handbook is an encyclopedia or omnibus of firearms and ammunition and the use of them, it has:-
•  90   pages of Information for Range Officers,
•  239 pages on Coaching to Win,
•  110 pages on Air Rifle History &Training,
•  33   pages on hitting Clay Targets,
•  34   pages on Reloading Ammunition,
•    6   page of Contents,
•  18   pages of Index,
•  38   pages of Old into New, ( Chronological History of Firearms)
•  23   pages of Glossary of Terminology on Firearms and Optics
•  Over 1000 drawings and photographs.
•  Over 530 pages in a A4 stitched colour hardback.,
Some, hopefully will read it cover to cover, others will pick a heading out of the Contents pages and read a chapter or two, but no matter how much you know about shooting, reference material is always needed, as even people who rate as genius cannot retain everything. The real ability is being able to find out quickly and easily. You can check that you have the correct terminology, in the Glossary, check the Index and go straight to the right page. This book can be used as an information tool for a lifetime of shooting.

$75 for a Certified Numbered Book Signed by the author (state who you would like it dedicated to) plus $10 postage Australia wide.

The Range Officers Handbook pay by Pay Pal see Bulletin Special Announcement Page


Do You Want To Get A Queensland Shooting Licence?

You Will Need A Safety Certificate,
Courses Available for Catagories A,B,C,D,H,& M

Cost of Course $70.

Ph Jason Harelle 54824099 work hours.


Remington 700 Adl Synthetic $980.0


Any Inquiries on any products phone 07 54824099  or  07 54825070 or email owenguns@spiderweb.com.au



Slimline Electronic Ear Muffs
Hear and Protect
Hear normally up to 85 db Electronically reduces & protects hearing
Protects hearing above 85 db
Able to hear normal conversations and sounds to 85 decibels
Over 200 hours of battery life
Auto-adjust headband
Solid state circuit
Rotary on-off volume knob
These electronic ear muffs are a high standard ear muff in design, they are made to feel light and comfortable for all day use. They can be used as standard ear muff when the electronic component is not turned on and will passively reduce noise like any normal ear muff. They have a standard noise reduction rating of 29 decibel and are a Class 5.

Once turned on the microphone, located at the top of the ear muff, will pick up and amplify ambient noise. If some one standing next to you talks, their voice will be amplified through the speakers in both ear muffs. Should there be a loud noise, such as a firearm, the electronic ear muffs will automatically cut out and block the loud noise. The electronic ear muffs are designed to attenuate noise about 85 decibels, meaning that they will block out instantly, once the noise reaches a certain level. The electronic ear muffs allow you to control the volume level of ambient noise around you. On the shooting range with constant loud reports, the electronic ear muffs will block this noise. For range instructions or to communicate with another person, you can instantly hear them speak.
At the range or anywhere ear protection is constantly required, but you also need to hear instructions from others or you wish to be more aware of the ambient sound around you, these electronic ear muffs are what you need.

$65.00 plus post

Barska 3–12x 50 Rifle Scopes


Steyr Model 12 Semi Auto Pistol.


The Steyr Model 1912 or what is sometimes referred to as the Steyr-Hahn, (Hahn  which means ‘Hammer’ so it’s the Steyr Hammer) is a famous pistol and  was with the full power ammunition very powerful one for its time. The 9mm Steyr round is not the same as the 9mm para its case is longer and slightly less in diameter. At one time there was high velocity ammunition and low velocity ammunition, the low velocity being manufactured under the speed of sound for a special purpose. This famous pistol was accepted into service by the Australian Hungarian Government in 1911 and was used extensively in both World Wars. Some were apparently used with that special ammunition to take a silencer as they has a few design features which made them more suitable for that purpose than the Luger or the Walther P38.
Some books state that this was the handgun that started World War One and the sequel World War Two. (I do not believe it is possible for an inanimate object to cause anything) others say it was a Browning but as in many European languages the name for a semi auto pistol of all types is ‘Browning’ due to its popularity , and I did view  a Steyr Model 12 on the wall in the Military Museum in Belgrade where it stated, it was the guilty piece that shot Archduke Ferdinand in Sarajevo in 1914, it was mis described as a Browning. There is apparently another pistol on display in a museum in Sarajevo, and another at the Museum of Military History in Vienna but I cannot vouch for which manufacture they are or which one Gavrilo Princip actual used at the time. The Assassins were apparently given four hand guns by the Chief of Police some hours before the murders.
These pistols were adopted by the Austrian/Hungarian Empire and Romania and by the Chilean Government. After being used by Germany and the Axis powers in WWII a large shipment was sold to France and shipped to Vietnam for use by the French Foreign Legion against the ex -OSS/CIA operative Ho Chi Minh and by that time communist supporters. The French lost and Vietnamese re blued this shipment and disposed of them in the late 1990s. Some have the threaded muzzles with a cover. All are above the legal length for pistol competition.
Loading, the loading system is different to most other handguns, when the firearm is empty, pulling the slide back by hand as far as it will go enables the magazine follower to rise in line with the breech bolt face of the slide and holds the pistol open. However it cannot be loaded in this position. The slide must be drawn further back and the thumb safety on the left side of the receiver must be turned up until it catches and locks in the hold open slot, cut for it in the left hand side of the slide. A clip with 8 rounds is then inserted in the magazine or clip guides which are machined into the top of the slide. These cartridges are then stripped down by the thumb into the magazine. If no clip is available, cartridges can be inserted singly, since they are retained in place at the top by a spring operated lip on the left side. When cartridges have been inserted and the clip removed, pressing the catch out of engagement with the slide will permit the recoil spring to drive the slide forward and the breech face will stip the top cartridge out of the magazine and chamber it. No Military collection of the 20 century is complete without one of these classic handguns but remember the ammo is hard to come by. They are in good condition, miraculous in fact when you consider they are nearly 100 years old.

Any Inquiries on any products phone 07 54824099  or  07 54825070 or email owenguns@spiderweb.com.au


From when firearms using gunpowder to drive the projectile appeared many hundreds of years ago, inventors and designers have had three separate problems to deal with in improving and developing these firearms. The first, of course was the arrangement of barrel, breech, and stock which would permit the projectile to be fired safely, reliably, and accurately. The second was providing a system of igniting the powder charge, and of incorporating the igniter with the powder and projectile into a fixed cartridge for easy, effective, and rapid breech loading. These two problems were more or less solved by the end of 1860s. Those interested in these two early stages of development should visit firearm museums and examine all the developments of barrel, breech, stock, and ignition systems since the invention of gunpowder.


Vetterli Breech Loader

The third problem was the design of a breech mechanism which would permit of firing successive shots rapidly as demanded in both war and sport, but it was impossible of a real solution until the cartridge problems had been solved. This third problem is still in the process of solution and development. A great many more or less successful breech actions have been designed and produced in quantity, and some of these have withstood the test of many years of successful use. But the breech action is a mechanical problem, and of mechanical ingenuity there is no end. Breech actions come and go. The better ones stay in service and popularity for some years until a still better invention displaces them.
Such a multitude of breech actions have been developed since the introduction of the metallic cartridge that it would take a work of many thousand pages to describe them all, and such a work would be obsolete before it was completed because of new actions invented in the interim. We can merely call attention here to certain principles which should be incorporated in any breech action in order that the weapon shall be satisfactory from both the practical and ballistic standpoints. I think it would be helpful to list certain actions which have been successful and have lived through a long life of usefulness.
Outstanding Breech Actions

soper rifle

Soper Breech Loader

Starting soon after the invention of the metallic cartridge certain types of single loading breech actions were introduced. In these a single cartridge, or two cartridges in the case of a double barrelled weapon, were loaded by hand into the chamber, and the breech action was then closed manually to lock the weapon ready for firing. After firing, the opening of the breech action by hand extracted the fired cartridge case, and the weapon was again ready for loading. In single barrelled weapons this permitted about twelve aimed shots per minute to be fired, a considerable improvement over the muzzle loader which could hardly be loaded and fired more than once or twice a minute.
In the countries of the British Commonwealth the actions were Snider’s, Martini’s, Alexander Henry, Soper, and the “tip-up” action with both single and double barrel for shotguns and rifles from the famous double rifles to the single “Rook” rifles.
In America the outstandingly successful single loading actions were the Sharps, Ballard, Remington, Springfield 1873, and Winchester for rifles, and the “tip-up” action with both single and double barrel for shotguns.


Holland & Holland Double under construction display.

When the writer was a youth the above rifle actions were preferred to all others by skilled and discriminating riflemen, both military and civilian enthusiasts. They had found the early repeating mechanisms unsatisfactory in that they frequently jammed (that is, malfunctioned), they lacked fine accuracy, did not use long range cartridges, and were poorly balanced. The big game hunters had found out the hard way and would pay for break action tip up double rifles which was really two separate rifles in one. If one round of ammunition failed to ignite or malfunctioned they had a separate rifle ready in instant to stop that fast moving dangerous large pussy cat within seven feet.  Gradually, with the perfection of repeating actions, this devotion to single shot weapons died out. The last, the Winchester Single Shot, was discontinued in 1920 because in the previous year its sale had dropped to under one hundred. Old actions of these types are still used to a considerable extent by “historic rifle enthusiasts” .


The Martini will still be shooting when they are 200 years old.

The tip up shotgun action is still with us, and shows every indication of continuing in popularity indefinitely for sporting purposes. From time to time it has been improved by making it hammerless, by incorporating automatic ejectors to throw out the fired shells, and by a single trigger.
The introduction during the American Civil War of the Spencer and Henry repeating rifles, in which the mechanism was operated by a finger lever, started our inventors to producing many types of repeating lever actions. This was a type of action which particularly appealed to American hunters of deer and larger game by reason of its convenience, ease of operation, and neatness. The first really successful lever action repeater, which almost completely supplanted the single shots, was the Winchester Model 1886. Almost two million of
this action, and its modern variations, the Models 1892, 53, 65, and 71, have been manufactured. Other outstanding lever actions are the Winchester Model 1894 which within the last few years 2006 has ceased production with a claimed number built of 7,500,000 . The Savage Model 1899 which as truly a rifle before its time was manufactured for a 100 years. They would still be in production if they could be made at a more economical marketable price.  These actions have proved most successful and popular for hunting purposes at moderate ranges. It is conservative to state that, excluding purely military breech actions, ten times as many of them have been produced, and are still in use, as any other type of rifle breech action. They will probably continue in popularity for a long time although they may be supplanted for sporting purposes by semi-automatic actions unless as in Australia they have been banned from civilain use, by draconian gun laws.. Very few armies have adopted a lever action, except temporarily and as a stop gap, because all existing designs, except for the Savage 99 were unsuitable for breech pressures in excess of about 42,000 pounds. This precludes the use of modern long range cartridges, because these actions lack power to surely load and extract oversized and dirty cartridges. In the prone (lying) position it is impossible to operate the leaver without raising the head. This makes the head more liable to collect enemy fire. Lever actions have malfunctions with extraction when they are overheated. Lever actions mechanisms are more difficult to disassemble and assemble by hand, and because the resulting accuracy is rather mediocre. None of these are serious drawbacks from the viewpoint of the hunter.

leaver action 1873 mtiny

Cutaway Lever Action showing the many moving parts.

Starting in 1885 pump or slide action shoulder arms began to appear. The first was the Colt Lightning Magazine Rifle. The repeating mechanism is operated by a sliding forearm, and permits faster operation and firing than any other manually operated firearm. Many different actions of this type have been produced for both rifle and shotgun. The slide or pump action shot gun was very popular in Australia until John Howard’s prohibitive pointless gun laws removed them from the normal sporting shooter.
Next edition commences with the .22 Pump Actions.


In any operation it is far better to identify and remove problems at the initial stage. Anyone can recognise the futility of removing a primer, resizing, refitting a primer, giving it an accurate measure of powder, seating a bullet to the correct length and then having to discard it, due to finding a small hole in the case which allows the powder to leak out. Finding a split in the neck , or a crack in the body with the onset of head separation at the latter stage means that the work has been wasted. So take the time to inspect your used cases or when using other shooters cases take more time as then they are a total unknown item. Make sure that they are all the same calibre.


Magnifier with its own light source are great for inspecting cartridge cases.

If you want good accuracy make sure they are the same manufacturer. If you want better accuracy make sure they are in the same batch, if you want more accuracy, fill them to the very top with water and weigh the water, sort into batch lots so they are within one grain of the weight of the water. This checks the cubic capacity inside the case. It also give an indication on the uniformity of case wall thickness. If you want better accuracy weigh each case and discard any that are not uniform weight. Of course maximum uniformity of a cartridge case can only be assumed when you only use and reload the one single case each time. A slow but sure technique practised by some very fussy benchers reloaders. Make sure if your reloading Boxer Primers that all the cases you intend to reload have a single flash hole at the bottom of the case. If you are one of the very few who reload Berdan Primers make sure that each cartridge case all has twin flash holes. Many reloaders find it quicker to inspect the cases with an electrical magnifier like the one pictured.

30-06 headseperationtiny

Lines like the one above are an urgent sign that the next load will be full separated from the head to the neck. this could be fatal on dangerous game as the neck will not extract and prevent the next round being chambered.

PRESSURE IS good. Without it guns and ammunition wouldn’t work at all. Pressure is what drives the bullet out of the cartridge case, down through the barrel, and gives it the velocity and momentum necessary for it to reach the target. It must be made clear that chamber pressure—gas pressure—is an essential part of the gun/ammunition system. All too often people think in terms of “pressure is bad.” Well, only too much pressure is bad.

Consider the firearm as what it correctly is a single-cylinder, internal-combustion engine. The chamber and barrel form the cylinder, the bullet forms the piston, the primer is the spark plug, the propellant powder is the fuel. Until the instant of firing, all these components are static and invalid; nothing moves, no force is exerted, no work is done. At the instant of firing, the flash from the primer (spark plug) ignites the powder (fuel) which by combustion is changed from a solid to a gas which expands in all directions. The bullet (piston) being the lightest of the components and being relatively unrestrained (except by bore and rifling friction) is forced out of the cartridge case (cylinder) and through the barrel by the expanding gases.

From that description, it should become evident that pressure is an essential part of the system.
How much pressure is the question. At what point can we say that excess pressure exists? Using modern cartridge cases, each general type of firearm has its own general pressure limitations. This isn’t to say that the gun is unsafe with 1 per cent or 2 per cent more pressure than the arbitrary cut-off point, but that the safety factor begins to drop rapidly past what we call “working limits.”


Guns chambered for centre-fire ammunition. Modern rifles, front locking bolt actions, or lever actions, pump actions, semi-auto actions, are generally designed and manufactured to handle an extensive diet of pressures in the 50,000 to 55,000 psi range. Modern single shot rifles such as the Ruger, Colt AND Sharps have the same working range.


Self-loading handguns of the locked breech variety are generally intended for chamber pressures in the 30,000 to 35,000 psi range. This excludes the notable example of the Colt Government Model .45 ACP pistol which is generally restricted to pressures under 20,000 psi, but follows the above mentioned limits in the smaller 9mm and .38 Super calibers. It also excludes certain older commercial and military locked breech pistols and all of the unlocked-breech designs except the Astra M400/600 series which is adapted to the standard limits mentioned. Modern solid frame revolvers in the magnum class are generally considered capable of handling pressures in the 40,000 psi range, while those not in the magnum class are generally indicated by the manufacturers to be limited to around 20,000 psi. Hinged frame revolvers are generally restricted to even lower pressures. Factory loaded ammunition for them never exceeds 15,000 psi, and generally runs substantially lower than that. Even the massive Webley design in .455 caliber was not intended to accommodate pressures over 15,000 psi regardless of the fact that many handloaders have used much heavier loads in it without damage. The small unlocked, blow back design pocket automatic pistols are intended for essentially the same pressure ranges as the break open revolvers.


Do not try and resize a case in this condition. It has gone two far and already a visible split can be seen forming. this case was fired in a chamber which is not fully supported such as the Glocks.

In short, chamber pressure is essential and good, but only up to the limits imposed by gun design and materials.

An almost unending list of variables and unknowns cause pressure variations. A partial list of the most significant factors would include, but not be limited to the following: Bore dimensions and twist; throat or leade (origin of rifling) profile; case/chamber length relationship; grip of case upon bullet; diameter, weight, bearing surface length, hardness, etc.; case and chamber volume; primer variations; and even variations in firing pin impact energy.
Consequently, when any of the above variations are introduced into a load already established as producing acceptable levels of chamber pressure, pressures may change either upward or downward. If downward, no harm is done other than a slight reduction in velocity and the attending drop off in bullet performance. However, any drastic increase in chamber pressure can be dangerous if it is of sufficient degree or if it is sufficient to cause an existing mechanical weakness in a cartridge case or gun to fail. Many handloaders, likely the majority, frequently interchange cartridge cases, bullets, primers, etc., and guns, with little or no regard for the effect this action might have upon the pressures being produced. Generally, they recognize that some change might take place, but they feel that it will not be sufficient in magnitude to wipe out the substantial safety factor they know exists. Unfortunately, the amount of pressure change that can take place as the result of component substitution can be sufficient to go well beyond reasonable safe limits.

A classic example of this is given in a NRA warning which cites in detail a series of tests undertaken with the .30/06 caliber cartridge. A standard load developing acceptable pressures and velocity was assembled with 150-grain bullets of a particular make and type. This load was then varied only in the bullet—an additional nine different bullets being substituted while all other factors and components remained the same. All ten loads were then tested for pressure and velocity under identical conditions and in the same combination of test barrel and gun, and instrumentation. The pressure tests results showed a range of 10,000 psi between the minimum and maximum average pressures produced by the different bullets. The lowest pressures of the lot were produced by the U.S. Military M 2 ball bullet. If one were to whip up a 50,000 psi load with that bullet, then switch to the bullet that produced maximum pressure, over 60,000 psi would be produced.

The point that must be made clear, is that had the original load been developed with the bullet that produced the least pressure, and been built up to the maximum working pressures at the start, then random substitution of the other bullets would have produced pressures ranging from 65,000 to 70,000 psi. Such pressures are in no way acceptable in either factory or handloaded ammunition. It must also be considered that the industry standard proof load pressure in this same caliber is only 72,000 psi—and the proof load is intended only as a one-shot test to determine if any mechanical defects exist in the gun. Incidentally, handloaders whose custom is to work up what they call “maximum” loads based upon external evidence of excessive pressures can easily cause actual pressures to go far beyond proof pressures by random interchange of bullets. These pressures can easily wreck the gun and maim, or kill the shooter.


Lovely pattern but this is due to acid eating a hole in the side of the case.

Random substitution of other components will have a similar but lesser effect and will certainly produce pressure variations, and, these effects could be cumlative. Let’s say that you have made a bullet substitution representing the extreme range shown in the NRA tests-then that you have compounded this by substituting case and primer whose differences also tend to increase pressures; then that you fire the substituted load in a rifle with a bore somewhat tighter than before. The three ammunition and one rifle variables, all tending to increase pressure, will combine to produce a very substantial increase which can in no way be predicted. The increase might well range over 20,000 psi. The effects of that added to a load already in the 50,000 psi range should be obvious. On the other hand, it often occurs that the combination of variables and/or substitutions are self-cancelling—therefore producing no increase in chamber pressure whatever. Again, there is no way in which this can be predicted. It is for these very crucial reasons that the procedures outlined in these ensuing pages devoted to using safe used cartridge cases and load development always start below recommendation. What is safe in your mates rifle could be suicidal in yours of the same make and manufacture, your life depends on the good grace of the machinist who made your barrel. Let us hope it was not the first one on a Monday morning after a hard drinking weekend or the last one on a Friday when he wanted to get home early for a binge weekend.

The question then arises as to the validity of chamber pressure values published in various handloading manual data sections. Confusion is compounded when some of those manuals do not identify the particular make and type of bullet, primer, case, or rifle used in the tests.

Or are so brand specific that components can never be matched? No.

Generally speaking, the compilers and publishers of most good manuals deliberately err on the conservative side. In other words, what is listed as a maximum load with an unidentified group of case, primer and bullet has been deliberately cut back so that random substitution and exchange of components will not generally produce dangerous pressures. Loading data published by the manufactures loading manuals, always positively identify all components and the dimensions of the test barrel used, as well as atmospheric and temperature conditions.
As in Australia not all the components are available all of the time, some never. Many of the powders in the manufactures books are not available at all in Australia and Australian powders and some European powders are never mentioned in the most informative American manuals.


Hopefully this one was not fired. The powder has broken down into its base materials and the acid has eaten its way out of the case. Do not re use cases which show signs of corrosion.

The Easy and Best Solution Is To Start Low And Learn As You Go.

The obvious solution to this apparently perplexing problem is to simply reduce the powder charge by an appropriate amount whenever any significant component substitutions are made. Some authorities recommend a 10 percent reduction in powder charge for some calibers, others may be handled quite nicely with 5 percent. This reasoning is simple. For example, take a .300 Winchester Magnum load using nearly 80 grains of a very slow-burning powder, as opposed to a 9mm Parabellum load using slightly less than 5 grains of very fast burning Bullseye. Because of the burning characteristics of the powders and the pressure ranges within which the two loads are intended to operate, a 5 percent reduction is entirely adequate in the .300 Winchester Magnum, while a 10 percent reduction is more appropriate in the 9mm load.
I would apply the above charge reductions in the case of bullet substitution or when switching to a second gun which might contain an undersize bore or other critical variables. If, on the other hand, one was simply substituting between the two different makes of primers originally intended for the same type of use, a smaller charge reduction would be safe enough to work up from.

Next Edition Substituting Bullets.

A Free External Ballistics Calculator for all Components not Brand Specific.


Click This Link to read the Instruction Sheet.

Email : OwenGuns@spiderweb.com.au and the External Ballistics Calculator program will be sent to you in EXCELL Format free of charge.

Thought for The Week.

“It never rains but it pours” is the old saying well last week it happened in more ways than one. I always love email correspondence, new and old friends saying hello and requiring a little advice, well it is fixed now. (I hope) What occurred a few weeks ago was I had so many free manuals being sent out at one time it crashed. Of course that left a situation where I did not know which ones had been sent which had not. So I began again, of course after sitting there for nearly 23 hours, when I thought I was just about catching up, when another days requests were adding up the in the inbox , It, (I do not want to tempt fate by calling it names) fell over again. This time when I turned on again and did all the AVG scans, scared that I may have caught the computer version of swine flue I only had 32 emails in my out box, so I did not have as many to begin again with. After the third or forth time on the second day, I finally phoned up my server, told them that I was sure I did not have a virus but sending was a huge problem. The very nice lady a resident of Gympie, Queensland, (not India) solved the problem. She kindly asked me, “Was I using ‘Outlook Express?'” “Yes”, “How many emails do you have in your ‘Send’ box? “4725, I sheepishly answered. “Well, your Send box is full and when its full ‘Outbox’ box cannot put them in there so will send them again and again until it can. “Oh, Thank you very much” says I. Simple it is, if once we know what the answer is. So after deleting my Sent box, I finally began to get most of my emails answered.


When the Computers finally die, we can all go back to the old ways of selling guns. Next year Owen Guns is 35 years old.

So for all those who suffered from getting forty of fifty emails from me, please accept my apologies and be consoled that it was not a virus causing it, it was me struggling. For those who did not receive an answer from me please send your enquiry again. Just use the address owenguns@spiderweb.com.au for any inquiry.
Also while this was going on I had several inquiries ‘for comment’ from radio stations about the Muslim suicide group who had been arrested in Melbourne. My comments were obviously not wanted by any radio station. In fact my comments were so ‘politically un-correct’, not one of them had the courage to even record them. On there part I must give them points for non -originality like the same questions was asked each time. Where would these terrorists acquire the dangerous automatic weapons?
I told them that our Defence Forces had lost 5000 and it was reported in the Canberra Times and the article was written by Fia Cummings. The next question was but where else could they get them from, so my next answer by this time by rote? They would get them from corrupt police and now that the Customs Officer were armed that they would be a good source failing that they would get them through the Diplomatic Bags of any sympathetic Embassy with which we had no shortage. Of course this was not the answer they wanted. It seemed the Anti-gun lobby were claiming that the terrorists were buying them from Queensland. They seemed to want answer such as they are all freely on sale in Queensland.  I told the Barbi and Kens that had they forgotten that John Howard had banned them all, and followed it up with as all guns had been banned in Lebanon in 1979 and all guns had been banned in  North Ireland and all guns had been banned in the UK but they still had the worst general crime rate in the Western World. All of this was a little too near the truth, so I got the, “We will get back to you” response. They would get back to Paul Wilson or Phil Alpers or the Rebecca Peters of this world. In an article from the UK  BBC by Joyce L Malcolm
As gun crime leaps by 35% in a year, plans are afoot for a further crack down on firearms. Yet what we need is more guns, not fewer, says a US academic.
“If guns are outlawed,” an American bumper sticker warns, “only outlaws will have guns.” With gun crime in Britain soaring in the face of the strictest gun control laws of any democracy, the UK seems about to prove that warning prophetic.
For 80 years the safety of the British people has been staked on the premise that fewer private guns means less crime, indeed that any weapons in the hands of men and women, however law-abiding, pose a danger.
Government assured Britons they needed no weapons, society would protect them. If that were so in 1920 when the first firearms restrictions were passed, or in 1953 when Britons were forbidden to carry any article for their protection, it no longer is.
The failure of this general disarmament to stem, or even slow, armed and violent crime could not be more blatant. According to a recent UN study, England and Wales have the highest crime rate and worst record for “very serious” offences of the 18 industrial countries surveyed.
But would allowing law-abiding people to “have arms for their defence”, as the 1689 English Bill of Rights promised, increase violence? Would Britain be following America’s bad example?

The ‘wild west’ image is out of date.
Old stereotypes die hard and the vision of Britain as a peaceable kingdom, America as “the wild west culture on the other side of the Atlantic” is out of date. It is true that in contrast to Britain’s tight gun restrictions, half of American households have firearms, and 33 states now permit law-abiding citizens to carry concealed weapons.
But despite, or because, of this, violent crime in America has been plummeting for 10 consecutive years, even as British violence has been rising. By 1995 English rates of violent crime were already far higher than America’s for every major violent crime except murder and rape.
You are now six times more likely to be mugged in London than New York. Why? Because as common law appreciated, not only does an armed individual have the ability to protect himself or herself but criminals are less likely to attack them. They help keep the peace. A study found American burglars fear armed home-owners more than the police. As a result burglaries are much rarer and only 13% occur when people are at home, in contrast to 53% in England.


Is this snake 'life saving' the cow? Or is it symbolising the real truth in that old lie, "I'm from the Government, I'm here to help you.

Multi Culture Causes Murder.

Much is made of the higher American rate for murder. That is true and has been for some time. But as the Office of Health Economics in London found, not weapons availability, but “particular cultural factors” are to blame. A study comparing New York and London over 200 years found the New York homicide rate consistently five times the London rate, although for most of that period residents of both cities had unrestricted access to firearms.
When guns were available in England they were seldom used in crime. A government study for 1890-1892 found an average of one handgun homicide a year in a population of 30 million. But murder rates for both countries are now changing. In 1981 the American rate was 8.7 times the English rate, in 1995 it was 5.7 times the English rate, and by last year it was 3.5 times. With American rates described as “in startling free-fall” and British rates as of October 2002 the highest for 100 years the two are on a path to converge.

Gun crime rates between UK and US are narrowing
The price of British government insistence upon a monopoly of force comes at a high social cost.
First, it is unrealistic. No police force, however large, can protect everyone. Further, hundreds of thousands of police hours are spent monitoring firearms restrictions, rather than patrolling the streets. And changes in the law of self-defence have left ordinary people at the mercy of thugs.
According to Glanville Williams in his Textbook of Criminal Law, self-defence is “now stated in such mitigated terms as to cast doubt on whether it still forms part of the law”.
Nearly a century before that American bumper sticker was slapped on the first bumper, the great English jurist, AV Dicey cautioned: “Discourage self-help, and loyal subjects become the slaves of ruffians.” He knew public safety is not enhanced by depriving people of their right to personal safety. Joyce Lee Malcolm, professor of history, is author of Guns and Violence: The English Experience, published in June 2002.   That was all very well said.

Another thought for the week with Pirates (Arctic Sea) striking in Europe, as well as the Middle East and Asia. If at Port Arthur in 1996 the site was attacked by mauruading Pirates, and 35 people has been killed would the Governments response been to disarm all the coastal areas of Australia? Or would they have assisted those areas in arming and defending themselves?


Operators Manual for a Ruger Single Six and Super Single Six Revolvers,  Instructions, Assemble Dis-Assemble Maintenance Exploded Diagrams General Data, Safety Warnings

Email : OwenGuns@spiderweb.com.au and it will be sent to you in .pdf format free of charge.

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