The Definition of Sights
The device that aids the eye in aiming the barrel of a firearm in the proper direction to hit a target.They can be a mechanical, optical,
or electronic device. Iron sights or sometimes as open sights, consist of specially-shaped pieces of metal placed at each end of the barrel.
The sight closest to the muzzle end of the gun is called the front sight,
while the one farthest from the muzzle (and nearest to the shooter) is called the rear sight.
19 Other Firearms Definitions You Need To Know
An underpowered powder charge, usually caused by a fault in cartridge loading, often insufficient to expel a projectile from the muzzle of a firearm.
If such a blockage is not cleared, the next attempted shot could cause the barrel at least to bulge, and very possibly to burst.
An inclined, polished area on a repeating firearm, just behind the chamber, that helps guide a cartridge into the chamber when pushed forward by the closing bolt or slide.
A bullet or shot in flight after discharge from a firearm.
Slang term for a firearm sound suppressor.
A Muzzleloading long gun which has a completely smooth bore and is intended to fire a single projectile rather than a collection of shot.
The interval of time between trigger release and the detonation of the primer. Generally, the faster the lock time the better, because this makes it easier to shoot accurately.
A type of cartridge for a firearm that contains gunpowder but no bullet or shot. When fired, the blank makes a flash and an explosive sound (report).
Blanks are often used for simulation (such as in historical reenactments, theatre and movie special effects), training, and for signaling (see starting pistol).
Blank cartridges differ from dummy cartridges and snap caps, which are used for training or function testing firearms; these contain no primer or gunpowder, and are inert.
A unit of measure traditionally used for black powder shotgun charges. Today, used for smokeless powders on the basis of the new propellant's
equivalent performance to that weight of black powder. Thus, a shotgun shell marked 3 - 1 1/8
would be loaded with the smokeless powder equivalent of 3 drams of black powder, and with 1 ounce of shot. 1 Dram = 1/16 ounce = 437.5 grains.
Abbreviation for Accidental Discharge
A built in lock that may prevent the firearm from being fired.
The arc described by a projectile (or a load of shot) after it exits the muzzle of a firearm. Falling objects accelerate downwards at a rate of 32 feet per second, per second.
The faster a projectile travels, the greater the distance it can cover in a given time before dropping too far. Hence, the higher the velocity of a bullet, the flatter the trajectory it will achieve.
A type of iron sights that glow or shine in the dark, intended for use in low light conditions. Some night sights consist of tiny tubes of tritium, while others use a phosphorus paint.
Abbreviation for Double Action/Single Action. A type of firearm that is designed to operate in double action on the first shot, and in single action on the second and subsequent shots.
A condition on a shooting range that is completely safe. Any firearms at the range are on the benches, unloaded with open actions and all people have stepped away from the firing line.
The NRA teaches the Three Basic Rules of Safe Gun Handling.
There are additional rules, but these are the three that if any two are followed, nobody will be hurt. However, obviously, all three should
always be followed.
Rule One: ALWAYS keep the gun pointed in a safe direction.
The NRA established these three rules in 1871. They were created to be easy to understand and remember,
ensuring the highest possible level of firearm safety.
Rule Two: ALWAYS keep your finger off the trigger until ready to shoot.
Rule Three: ALWAYS keep the gun unloaded until ready to use.
See also The Four Rules
That part of the stock on a rifle or shotgun into which the barrel fits.
A heat-treating process that incorporates carbon into the surface molecular
structure of the steel, providing a hard-wearing surface without making the entire
receiver brittle. The parts to be casehardened are packed in a crucible with
carbon-rich media such as bone meal and charcoal, heated to bright orange, about
1800°F, then quenched in bubbling oil. Also
A hand tool used in the field for inserting live
and removing spent primers from cartridges.
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