The Definition of Ballistic Coefficient
A measure of projectiles ability to overcome air resistance in flight.
It is inversely proportional to the deceleration—a high number indicates a low deceleration.
Ballistic Coefficient (abbreviated as BC) is a function of mass, diameter, and drag coefficient. In bullets it refers to the amount that drop over distance and wind drift will affect the bullet.
19 Other Firearms Definitions You Need To Know
The angle of the butt of a gun in relation to the line of sight.
Pitch is measured by resting the gun with its butt flat on a floor, the top of the receiver against a wall and its muzzle pointing up.
The distance of the muzzle from the wall is the gun's pitch down.
On guns (mainly shotguns) that have two barrels, there is a trigger for each barrel that work independently from each other.
A type of gas operation for a firearm that directs gas from a fired cartridge directly to the bolt carrier or slide assembly to cycle the action.
Not putting your finger on the trigger until your sights are on target, then pulling the trigger smoothly, and following through by realigning the sights before allowing your finger to come off the trigger.
A firearm's ability to be fired fully automatically, semi-automatically or, in some cases, in burst-fire mode at the option of the firer.
A double-action semi-automatic firearm which is designed to have a much lighter trigger pull than is usual for a double action.
Normally, a break-open, double-barrel, side-by-side pistol of large calibre, used by
a maharaja when hunting tiger on the back of his elephant (in the howdah, the basket compartment in which he sits).
The howdah pistol is the weapon of last resort in case the tiger tries to join him in the howdah.
The forward end of the bolt which supports the base of the cartridge and contains the firing pin.
A shooting position in which one or both knees are touching the ground and the shooter is as low as possible.
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 term often used to refer to the very poor and dangerous practice of rapidly firing many shots at a target as
possible in the hope that one or more may hit the target. This practice is a danger not only to bystanders but also to the shooter.
The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF, BATF, and BATFE) is a federal law enforcement organization within the United States Department of Justice. Its responsibilities include the investigation and prevention of federal offenses involving the unlawful use, manufacture, and possession of firearms and explosives; acts of arson and bombings; and illegal trafficking of alcohol and tobacco products. The ATF also regulates via licensing the sale, possession, and transportation of firearms, ammunition, and explosives in interstate commerce. Many of ATF's activities are carried out in conjunction with task forces made up of state and local law enforcement officers, such as Project Safe Neighborhoods. ATF operates a unique fire research laboratory in Beltsville, Maryland, where full-scale mock-ups of criminal arson can be reconstructed.
A bolt-action designed by Browning firearms.
The x-bolt action features a short 60° bolt lift. So it is fast cycling and allows working the bolt quicker without the scope getting in the way.
As in Trapdoor buttplate or Trapdoor Pistol Grip Cap, one of these articles of furniture including a hinged plate,
covering a small compartment below in which may be stored several extra cartridges, sight bits, extra springs or pins, cleaning rod, etc.
A type of firearm in which the action is closed, with a cartridge in the chamber prior to firing. When the trigger is pressed the cartridge is fired,
and the action cycles loading another cartridge into chamber and when firing is stopped the bolt remains closed and the chamber remains loaded.
The entire process of moving the trigger from its forward-most position to its rearward-most position, causing the hammer to fall and the shot to fire.
A bolt action which is locked by pressing the bolt handle in and down, thereby turning its locking lugs into the receiver.
Being aware of and responsible of which direction your firearm is pointed at all times, and always keeping it pointed in a safe direction.
The rear end of a rifle or shotgun. (The portion that rests against the shoulder.)
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