The Definition of Barrel
A tube, usually metal, through which a controlled explosion or rapid expansion of gases are released in order to propel a projectile out of the end at a high velocity.
It is the tube through which the bullet or shot travels. The barrel serves the purpose of providing direction and velocity to the bullet.
19 Other Firearms Definitions You Need To Know
A safety catch fitted to a hammer gun where a sliding bar moves into a slot in the inner wall of the hammer base, locking it in place in the cocked position.
The safety can then be released silently by sliding the tab, avoiding the game-startling sound of the hammer cocking.
Round knob, semi pistol grip.
Abbreviation for Concealed Firearms Permit.
The frequency at which a firearm can fire its projectiles.
A popular term for a short barreled repeating shotgun as frequently used in law enforcement and personal protection.
A metal cup placed on the end of a lead bullet to protect the lead against the hot gases of the burning powder charge.
Used in some types of firearms ammunition when non-jacketed bullets are used in high pressure cartridges, to prevent the buildup of lead in the barrel and aid in accuracy.
A shooting sport where cometitors use three different guns on each stage of the competion; shotgun, rifle and handgun.
A safety which the shooter must deliberately disengage in order to fire the gun. The most common form of safety mechanism is a
switch that, when set to the "safe" position, prevents a pull of the trigger from firing the firearm.
A second sear, poised just behind a second notch in the hammer. It is possible that when a cocked firearm is dropped or sharply jarred, a
single sear could jump out of its notch and the hammer could fall, firing the gun accidentally. In this event, an intercepting sear
would engage before the hammer could fall completely, preventing an accidental discharge. On a gun with intercepting sears, only
by pulling the trigger are both sears moved out of the way simultaneously, allowing the gun to fire.
Intercepting sears are usually found on better sidelock actions. They are sometimes found on best boxlocks,
and can be recognized by an extra screw behind the action fences, in addition to the usual two screws (or pins) along the lower rear of the receiver.
The part of a revolver that holds cartridges in
separate chambers radially around a central hingepin. The cylinder revolves as
the handgun is cocked, , either to the left or to the right depending on the gun maker's design,
bringing each successive cartridge into position, and
locked into alignment with the barrel for firing.
Fouling of a firearm bore by metal particles from bullets adhering to the metal surface caused by heat or friction.
A bullet not covered by a metal jacket or patch.
A trigger that breaks from an extremely light touch.
A middle position for an external hammer that effectively provides a safety function. With a firearm with non-rebounding hammers,
when on half-cock, the firing pin will not rest on the firing-pin.
Dummy cartridges with spring-loaded "primers" used to test the mechanical functioning of a firearm, particularly the trigger
pulls, hammer-fall and ejector-timing of a break-open gun. It is not advisable to dry-fire a break-open gun on an empty chamber.
Hardened steel parts can shatter without the soft brass primer to act as a shock absorber. Snap caps cushion the blow of the hammer and
firing-pin when the use of a live cartridge would be impractical.
Any malfunction that results in no shot fired when the trigger is pulled. Commonly caused by a failure to feed, bad ammunition or a broken firing pin.
The size of the pellets in a shotgun shell.
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