Concept
The following are terms related to firearms and ammunition topics. Accurize, accurizing: The process of altering a stock firearm to improve its accuracy. Action: The physical mechanism that manipulates cartridges and/or seals the breech. The term refers to the method in which cartridges are loaded, locked, and extracted from the mechanism. Actions are generally categorized by the type of mechanism used. A firearm action is technically not present on muzzleloaders as all loading is done by hand. The mechanism that fires a muzzleloader is called the lock. Adjustable sight: Iron sights that allow the user to change the markings, intended for firing at multiple possible ranges. Ammunition or ammo: Gunpowder and artillery. Since the design of the cartridge, the meaning has been transferred to the assembly of a projectile and its propellant in a single package. Assault rifle: A service rifle capable of semi- or full automatic fire, that fires intermediate cartridges. Assault weapon: A term used in some jurisdictions in the United States, usually used to describe semi-automatic rifles that fire from detachable magazines. Automatic fire: A weapon capable of automatic fire is one that will continually expend ammunition for as long as the trigger is held. Automatic pistol: A pistol that is capable of automatic fire; a machine pistol. Automatic rifle: A self-loading rifle that is capable of automatic fire. Back bore, backbored barrel: A shotgun barrel whose internal diameter is greater than nominal for the gauge, but less than the SAAMI maximum. Done in an attempt to reduce felt recoil, improve patterning, or change the balance of the shotgun. Bandolier or bandoleer: A pocketed belt for holding ammunition and cartridges, usually slung over the chest. Bandoliers are now rare because most military arms use magazines, which are not well-suited to being stored in a bandolier. They are, however, still commonly used with shotguns, as a traditional bandolier conveniently stores individual shells.