The Definition of Shell Casing
A hollow, piece of metal (or plastic in the case of a shotgun shell) that is closed on one end except for a small hole which holds a primer.
The open end holds the bullet. The hollow portion holds the powder.
Together the assembled unit is called a cartridge.
19 Other Firearms Definitions You Need To Know
The forward portion of a bottlenecked cartridge case. Also the portion of a rifle chamber in which the neck of the cartridge case rests.
A swing-out arm on a revolver, to which the cylinder is
mounted when opened facilitates loading and cleaning.
To tilt a gun to one side or the other,
complicating sighting considerably. Can cause material loss of accuracy,
particularly with a rifle at longer ranges. Some better long range target rifles
are equipped with Spirit Level sights
to help control canting.
"V" shaped rear leaf sights mounted to a rifle barrel on a block or on a quarter-rib, sometimes solid standing, sometimes folding,
and often mounted in a row of similar leaves, each of a slightly different height, marked with the range for which each is regulated
An early firearm mechanism in which a wheel with serrated edges is wound against the tension of a strong spring and spins against a piece of iron pyrite, sending a shower of sparks into the pan to ignite the charge.
A premature, unintended discharge of a firearm that occurs as a round is being loaded into the chamber.
The locking lugs on a break-action firearm that extend from the bottom of the barrels under the chamber(s) and connect into the receiver bottom.
The beginning of the bore of a rifled firearm. The transition between the chamber and the rifling. The area most vulnerable to erosion from high velocity cartridges.
A Moon Clip that hold enough rounds to load only a portion (usually half capacity) of a revolvers cylinder.
A set of holes in a target left by a succession of bullets fired from the same rifle or handgun,
using the same ammunition and sight setting. Fired (within the limits of one's marksmanship ability)
to determine the inherent accuracy of the rifle/ammunition combination,
and to aid in the proper adjustment of the sights.
A trigger that breaks (to release the hammer) easy.
American name for the German "Parabellum" semiautomatic pistol introduced in 1900.
The Parabellum was designed by Georg Luger, and based on the earlier Borchardt pistol.
The official German military nomenclature was "Pistole '08" or "Po8." At first, it was chambered for the 7.65mm Parabellum round.
Soon, it was modified to use the 9mm Parabellum cartridge, which is what most people refer to today when talking about a 9mm cartridge.
"Luger" is now a trademark owned by the Stoeger Arms Co.
A shotgun term which refers to the manner in which the pellets spread out as they exit the gun.
"The pattern" refers to the overall shape of the entire set. A tight pattern is one in which the pellets are closely grouped when they land on target.
A loose pattern is one in which the pellets are widely spread.
Brady Handgun Violence Prevention Act of 1993.
The Brady Handgun Violence Prevention Act of 1993 mandates background checks of gun buyers in order to prevent sales to people prohibited under the Gun Control Act of 1968 legislation.
Requires checks to be performed through the FBI's National Instant Criminal Background Check System (NICS).
Records of who has been checked are not preserved because federal law prohibits the creation of a national registry of gun ownership.
Sales by unlicensed private sellers who are not engaged in gun dealing as a business are not subject to the checks under federal law, though they are required by some states.
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.
A hinged plate covering the bottom of a rifle magazine and extending rearward on either side of the triggerguard.
This design allows it to be more securely fastened for one more imperceptible step towards total reliability.
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