Explosive
Any substance (TNT, etc.) that, through chemical reaction, detonates or violently changes to gas with accompanying heat and pressure.
Arsenal Exchange
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Letter EThe Definition of Explosive
19 Other Firearms Definitions You Need To KnowTrigger PullThe entire process of moving the trigger from its forward-most position to its rearward-most position, causing the hammer to fall and the shot to fire. Speed LoaderA device used to load magazines or revolver cylinders quicker than by hand. SabotAn oversized, lightweight housing that allows a sub-calibre projectile to be fired in a larger-diameter bore, usually in the interest of increased velocity. The sabot falls away from the actual projectile upon exiting the muzzle. For example, a hunter could use his .30-30 deer rifle to shoot small game with .22 centerfire bullets. WCAbbreviation for wadcutter. MalfunctionA misfeed or other failure to fire which can be cleared on the spot and without tools. Hammer BiteThe action of an external hammer pinching or poking the web of the operator's shooting hand between the thumb and fore-finger when the gun is fired. Firing Pin BlockA type of internal safety that prevents the firing pin from moving forward for any reason unless the trigger is pulled. DAAbbreviation for Double Action RailgunA railgun is an electrically powered electromagnetic projectile launcher based on similar principles to the homopolar motor.
OTMAbbreviation for Open Tip Match. Improved CartridgeA wildcat cartridge that is created by straightening out the sides of an existing case and making a sharper shoulder to maximize powder space. Frequently the neck length and shoulder position are altered as well. The caliber is NOT changed in the process. PortAn opening. The ejection port is the opening in the side of a semi-auto from which spent cases are ejected. Cross DominantThis means a shooter who is right-handed but left-eyed, or left-handed and right-eyed. FrontstrapFront, metal, part of a handgun's grip, which together with the backstrap, provides a mounting frame for the grip panels. Disc-Set StrikersCircular steel fittings, about 1/2 inch in diameter, screwed into the breech face of a gun and through which the firing pins pass. Firing pin bushings allow the convenient replacement of broken firing pins. They also allow the renewal of an older gun where, over the decades, leakage of high-pressure gas from corrosive primers has eroded the breech face around the firing pins; and replacing these bushings with new ones, slightly oversized can compensate for a situation where proper headspace has been compromised. Sight RadiusThe distance between the rear sight and the front sight. As a longer lever provides greater mechanical advantage, the greater the distance between the two sights, the more inherently accurate they will be. BermOn an outdoor shooting range, a large pile of dirt that functions as a backstop. Button RiflingRifling that is formed by pulling a die made with reverse image of the rifling (the 'button') down the pre-drilled bore of a firearm barrel. BenchrestA device used (usually set on a counter) to support a shooters arms and/or hands to help make steadier shots. |
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