The Definition of Trajectory
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.
19 Other Firearms Definitions You Need To Know
Abbreviation for 'Back Up Gun'
An imaginary straight line through the centre of the bore of a firearm extending to infinity.
A type of firearm action in which the guns's bolt is operated manually by the opening and closing of the breech (barrel) with a small handle.
As the handle is operated, the bolt is unlocked, the breech is opened, the spent shell casing is withdrawn and ejected,
the firing pin is cocked, and finally a new round/shell (if available) is placed into the breech and the bolt closed.
Pulling the slide back to its rearmost position, and then letting it go forward under its own spring tension.
Racking the slide loads the chamber and prepares the gun to fire in a semi-automatic handgun.
More commonly known as WCF, it is a family of centerfire cartridges designed by Winchester Repeating Arms Company
A groove or indention around the circumference of a bullet. Its purpose is to permit the cartridge casing to be
crimped tightly against the bullet shank to hold it firmly to the casing. A groove or indention around the
circumference of a bullet. Its purpose is to permit the cartridge casing to be crimped tightly against the
bullet shank to hold it firmly to the casing.
Originally, live pigeons were used as targets, but they were gradually replaced with clay disks and ultimately banned. Later clay has been replaced with more suitable raw materials.
The rear sight is placed at the end of the barrel nearest the shooter. It may be in the shape of a square notch, a U, a V, a ring,
or simply two dots designed to be visually placed on either side of the front sight while shooting.
This is the maximum overall length the cartridge can be (and is expected to be) in order to function properly in magazines and the mag well of a bolt action rifle.
A popular term for a short barreled repeating shotgun as frequently used in law enforcement and personal protection.
A two-barreled, side-by-side, shoulder-fired gun having one
smoothbore shotgun barrel and one rifled barrel.
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 long strip of leather, plastic, or nylon which is fastened at the fore and rear of the gun for the easy carry of long guns.
A hammerless single shot action type whereby a breech-block, hinged at the upper rear, operated by an underlever, tilts downward to expose the chamber.
Slang for eye protection. Referes to either goggles or safety glasses
Usually a circular or oval band of metal, horn or plastic that goes around the trigger to provide both protection and safety in shooting circumstances.
The shooter's finger should never be within the trigger guard unless the sights are on target and the shooter has made the decision to fire.
The sliding metal dowel located at the muzzle end of a revolver cylinder.
After firing, the shooter opens the cylinder and depresses the front end of the ejection rod, which forces the empty cases out of the cylinder.
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