Choke
A constriction at or near the muzzle of a shotgun barrel that affects shot dispersion.
Arsenal Exchange
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Letter CThe Definition of Choke
19 Other Firearms Definitions You Need To KnowHolographic Weapon Sighta non-magnifying gun sight that allows the user to look through a glass optical window and see a cross hair reticle image superimposed at a distance on the field of view. The hologram of the reticle is built into the window and is illuminated by a laser diode. Second AmendmentThe second article in the United States Bill of Rights which states, "A well regulated militia being necessary for a free state, the right of the people to keep and bear arms shall not be infringed." Magazine SafetyA mechanism that prevents the gun from being able to fire when the magazine is removed from the gun, even if there is still a round in the chamber. Duelling PistolsSingle shot pistols, of a design originating in England, in vogue circa 1770 - 1850, built necessarily in pairs, either of flintlock or percussion ignition, usually finely made and cased together with loading accessories. Dueling pistols tended to be lighter and sleeker than their contemporary service pistols. They tended to have smoothbore (or sometimes secret, scratch-rifling), octagon (or octagon-to-round) barrels around nine or ten inches long of some form of damascus steel, bores just over a half-inch, ramrods, rudimentary sights front and rear, single-set triggers, roller-bearing frizzens and curved grips integral with full or half-stocks. They were usually of high quality construction, sometimes with silver furniture, but normally of relatively plain decoration. Muzzle EnergyThe power of a projectile or a load of shot at the point that it exits the muzzle of a firearm, normally expressed in foot-pounds. Shell CasingA 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. CockThe term referring to the action of manually drawing the hammer back against its spring until it becomes latched against the sear, or sometimes the trigger itself, arming the hammer to be released by a subsequent pull of the trigger. Some external hammers, and all internal hammers, may be cocked simply by pulling the trigger MortarAn artillery piece used to fire shells over short ranges at very high trajectories. Winchester Short MagnumMore commonly known as WSM, it is a family of centerfire cartridges designed by Winchester Repeating Arms Company ScattergunA slang term for a shotgun. Bull BarrelBull barrels are barrels that are not tapered at all. These very heavy barrels, designed for extreme accuracy, are usually seen on target rifles. MainspringA strong spring which activates the striker or hammer of a firearm. HMRAbbreviation for Hornady Magnum Rimfire. LCIAbbreviation for Loaded Chamber Indicator Bolt FaceThe forward end of the bolt which supports the base of the cartridge and contains the firing pin. Firing Pin BlockA type of internal safety that prevents the firing pin from moving forward for any reason unless the trigger is pulled. TwistThe length, within a rifled barrel, required to accomplish one full rotation. 1:12 Twist, means a bullet passing down the bore would complete one revolution in twelve inches. 1:7 Twist, means a bullet passing down the bore would complete one revolution in seven inches, which makes it a tighter twist than 1:12. Different weights of bullet require appropriate rates of twist. Needle GunA needle gun is a bolt-action firearm (the first known type of bolt action rifle) that has a needle-like firing pin, which can pass through fully self-contained (paper) cartridge case to strike a percussion cap at the bullet base. The first experimental needle gun was designed by Jean Samuel Pauly, a Swiss gunsmith, in 1812. The first mass-produced needle gun was invented by the German gunsmith Johann Nicolaus von Dreyse, who, beginning in 1824, had conducted multiple experiments, and in 1836 produced the first viable breech loading gun model using a complete cartridge . Winchester CenterfireMore commonly known as WCF, it is a family of centerfire cartridges designed by Winchester Repeating Arms Company |
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