GENERAL GLOSSARY
GENERAL GLOSSARY Action: Breech mechanism of a firearm, by which it is loaded and unloaded, and which houses most of the moving parts. Airgun: Not a firearm but a gun that uses compressed air or CO2 to propel a projectile. Examples: BB gun, pellet gun, CO2 gun. Ammunition: This generally refers to the assembled [...]
Glossary For Optics
Optical Glossary Achromatic A lens classed as achromatic has been formulated to be free of chromatic aberration, which causes colour fringing. An achromatic lens, or achromat, achieves identical focus with light rays of two different colours. Apochromatic Apochromatic lenses are corrected to bring all three primary colours to the same focus. Astigmatism Aberration in a [...]
Explosives Glossary
GLOSSARY OF TERMS EXPLOSIVES Alarm: a signal given by an EDS that indicates to the operator that a detection of explosive material has been made. For a technological system such as an IMS the alarm might be either audio (e.g., a buzzer sounds) or visual (e.g., a message on a computer screen). In the case [...]
Range Glossary
RANGE TERMINOLOGY Back Stop Sometimes called Butts or Butt stop, generally a raised area that prevents bullets or projectiles leaving the range. Backing Cards Card behind scoring targets to either increased vision of the bullet hole or confirm amount of shots in one hole. Bench Rest Heavy table equipped with a Rifle Rest and Sand [...]