The Definition of Key Fastener
A horizontal wedge, press-fit through the forend of a vintage gun, through a lump
attached to the underside of the barrel and out the other side of the forend.
To secure the forend in position. Also called a crosspin or a wedge fastener.
19 Other Firearms Definitions You Need To Know
A complete cartridge of several obsolete types and of today's rimfire and center-fire versions
The proper adjustment of the various interrelated moving parts of a gun so that every operation works in proper sequence, such as that the two ejectors
of a double gun kick out the spent cases at the same instant and with the same force.
To pull the trigger and release the hammer of a firearm without having a cartridge in the chamber.
A term used in artillery to indicate a projectile impact beyond the designated target.
Slang word for short barreled revolver.
A common type of iron sights in which the rear sight is an open-topped U or a V or a square-notch shape and with a
blade type front sight, in contrast to the closed circle commonly found in aperture sights.
The relationship between a bullet's weight and its diameter. A long bullet, such as the original 7.62x54R
loading for the Mosin Nagant 91/30, will have a high sectional density and consequently greater
penetration than a shorter bullet of similar construction. A shorter bullet with less sectional
density will have relatively less penetration, but greater knockdown power.
A unit of weight widely used to express the weight of bullets and of powder charges. Equal to 1/7000 pound.
A variety of pneumatic gun that propels projectiles by means of compressed air or other gas, in contrast to firearms, which use a propellant charge.
Both the rifle and pistol forms (air rifle and air pistol) typically propel metallic projectiles, either pellets, or BBs. Certain types of air guns, usually rifles, may also propel arrows.
A gun holder that may be strapped to a human body, or affixed to the inside of a pack or bag, or dropped into a pocket.
A holster serves to protect the gun's mechanisms and finish, to provide security by covering the trigger so it cannot be pulled inadvertently,
and to present the grip of the gun at a constant angle for easy access. Some holsters also serve to obscure the outline of the
gun so it may be more easily concealed. Typically made from leather or in plastic.
Two firearms that are manufactured identical in every way and are sequentially serial numbered and are sold as a set.
The most common type of matched pair guns are cowboy style revolvers for a couple of reasons, both guns will feel exactly the same in the hands and they make the set more collectable.
A series of projections on the bolt of a firearm designed to fit into corresponding slots in the receiver to lock the action in closed position for firing.
A display of gunmaking skill with a possible benefit of strengthening the wrist of a heavily-recoiling rifle,
whereby the top tang of the action is made extra long, shaped and inletted into the top of the buttstock,
extending along the top of the wrist and up over the comb.
Popularized by Holland & Holland and adopted by several of the finest contemporary riflemakers in the USA.
A firearm that automatically loads the next cartridge to be fired into the chamber either upon the pull of the trigger in an open bolt design or upon the firing of the previous round in a close bolt design.
Autoloader should not be confused with Automatic or Semi-Automatic since the term Autoloader only applies to how the next round is chambered not
how many rounds can be fired per trigger pull.
All Automatic and Semi-Automatic firearms are autoloaders. Revolvers, bolt action, lever action and pump action firearms are not autoloaders.
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.
The vise-like device on a flintlock hammer used to hold the flint.
A type of firearm capable of discharging multiple individual shots in sequence, fed from a magazine, via the operation a lever, bolt, slide or some other form of manual operation.
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