An instrument used in anti-personnel combat. The term is never used when referring to target or sporting firearms.
1. The solid portion of a brass centerfire cartridge case between the inside of the case at the head and the bottom of the primer pocket. 2. The smallest dimension of a smokeless powder kernel.
A rifle stock developed by Colonel Townsend Whelen which features a forward sloping comb and cheekpiece.
Cartridges designed by individual inventors that have never been commercially manufactured.
The deviation from the expected flight path of a bullet due to the forces of wind.
The transverse movement of a sight to compensate for the horizontal displacement of a bullet or bullets from the aiming point.
The knob on some iron and telescopic sights which is turned in either direction to adjust the horizontal setting of the notch, aperture or reticle of the sight.
A micrometer type device found on some iron and telescopic sights which allows the shooter to make precision adjustments to the horizontal setting.
A manual safety found on some bolt action rifles, usually mounted at the rear of the bolt assembly, which pivots in an arc at right angles to the bore line.
A line on each of two mating parts used to indicate proper alignment. Also known as Draw-Line or Index Mark.