The Definition of Varmint Gun
Usually a rifle, but not always.
A small-caliber firearm or high-powered air gun primarily used for hunting
non-native or non-game animals such as rats, squirrels, gophers, jackrabbits, marmots, groundhogs, porcupine, opossum, coyote, skunks, weasels,
and other animals considered to be nuisance vermin destructive to native or domestic plants and animals.
19 Other Firearms Definitions You Need To Know
A firearm that is only capable of holding one shot at a time. Each round must be loaded into the chamber manually by hand before each shot.
The upper portion of a semi-automatic pistol that houses the barrel and contains the breechblock and portions of the firing mechanism.
Ejecting the spent case as it moves to the rear and loading a fresh cartridge into the chamber as it moves forward again.
As its name states, it slides along tracks in the top of the frame during the recoil process providing the linkage between
the breechblock and barrel.
Also called black powder, gunpowder is a mixture of sulfur, charcoal, and potassium nitrate. It burns rapidly,
producing a volume of hot gas made up of carbon dioxide, water, and nitrogen, and a solid residue of potassium sulfide.
Because of its burning properties and the amount of heat and gas volume that it generates, gunpowder has been widely used as a propellant
in firearms and as a pyrotechnic composition in fireworks. The term gunpowder also refers broadly to any propellant powder.
Modern firearms do not use the traditional gunpowder (black powder) described here, but instead use smokeless powder.
A part in a firearm that serves to remove brass cases of fired ammunition after the ammunition has been fired.
When the gun's action cycles, the extractor lifts or removes the spent brass casing from the firing chamber.
Incorrectoly sometimes referred to as a silencer, it is used to reduce the sound of a firearm's discharge.
They do not actually silence most firearms but rather lower the intensity of the muzzle blast and change the sound characteristics
(works similarly to an automotive muffler by disrupting and spreading out the sound waves).
The possession, use, and transportation of silencers have been tightly controlled under federal law since 1934.
Any device which reduces the sound of discharge by more than 2 dB is considered by the BATF to be a suppressor.
The paper filler at the rear of the powder charge of the shotgun shell.
Although a misused term (even within the firearms industry), Long Colt is a designation for an ammunition cartrige developed by Colt mainly used for revolvers. The actual designation is Colt instead of Long Colt.
The term Long Colt was originally coined to avoid confusion between the .45 Colt and .45 ACP cartridges
A firearm specially designed for use underwater.
A firearm, usually (but not always) a fully automatic rifle, that uses a ammunition on a belt rather than a magazine to store the rounds that will be loaded into the gun.
The hinged cover over the opening through which cartridges are inserted into the magazine.
Small caliber bullets being used in large cases. E.g. .22 bullet in a .45 acp case.
A pair of slender and easily-carried wooden dowels or sticks, which when held, crossed, in the fingers of the left hand while also supporting the forend of a rifle,
usually shooting offhand, provides somewhat enhanced stability for a more accurate shot.
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.
A front sight assembly, primarily for target rifles, consisting of a tube, housing interchangeable beads and blades. The tube guards against imperfect aiming due to sight pictures influenced by reflections.
Slang for a full metal jacket bullet with a round nose.
The term is most commonly used in referring to .45 ACP caliber ammunition, but may be used for other calibers as well.
A broad, flat, raised area on the side of a buttstock.
An optical sight, offering some magnification, often variable, with some kind of adjustable aiming grid inside (a reticle),
which when mounted on a firearm, usually a rifle, makes sighting easier.
Can also be spelled Over/Under, OverUnder or Over and Under.
A firearm (most commonly a shotgun) with two barrels that are vertically aligned with each other, one on top of the other.
A concave, semi-cylindrical surface cut into the forward lump of a barrel set of a break-open firearm which revolves about the hinge-pin when the gun is opened.