Understanding Firearm Cleaning and Preservation
Part 13
Guarding the Muzzle
57. If the firearm has a fixed barrel and a bolt that cannot easily be removed the barrel has to be cleaned from the muzzle. Cleaning from the muzzle can be a problem if damage is done to the “crown” of the barrel as it will severely affect accuracy. So protecting the crown is a priority. A hard or dirty cleaning rod, rubbing on the inside of the barrel wears the critical edges where the bullet leaves the barrel. Any wear on these leading edges ruins any hope of accuracy. So to prevent this a Muzzle guard can be simply made, anything which can be a tight fit on the outside of the barrel, as an example like an empty 12 gauge cartridge case with the primer drilled out to accept the cleaning rod is a good example for …