Letter X - Firearms Dictionary of Gun Terms, Slang and Abbreviations

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

X-Bolt

A bolt-action designed by Browning firearms. The x-bolt action features a short 60° bolt lift. So it is fast cycling and allows working the bolt quicker without the scope getting in the way.

X-Frame

The frame designation that Smith and Wesson uses for their extra large framed revolvers like the S&W Model 500 and S&W 460XVR

X-Mark Pro

A trigger system designed by Remington Arms Company.

17 Other Firearms Definitions You Need To Know

The rear portion of the barrel or firing cylinder in which the cartridge is inserted prior to being fired. Rifles and pistols generally have a single chamber in their barrels, while revolvers have multiple chambers in their cylinders and no chamber in their barrel.

Feed

The action of moving live cartridges from the magazine of a firearm into the chamber.

Lock Speed

The same as Lock Time

Magazine

A secure storage place for ammunition or explosives. On a firearm, it is the container, either fixed to a firearms's frame or detachable, which holds cartridges waiting to be fed into the gun's chamber.
Detachable magazines for the same gun may be offered by the gun's manufacturer or other manufacturers with various capacities. A gun with a five-shot detachable magazine, for instance, may be fitted with a magazine holding 10, 20, or 50 or more rounds.
Box magazines are most commonly located under the receiver with the cartridges stacked vertically.
Tube or tubular magazines run through the stock or under the barrel with the cartridges lying horizontally (like on a shotgun or lever action rifle.
Drum magazines hold their cartridges in a circular mode (for example the famous drum magazine on a Thompson submachine gun).
On a revolver, the magazine is known as the cylinder.
Internal magazines are built into the firearm and are not removable. Examples of internal magazines are the tube magazines of a shotgun or the magazine on a Mosin Nagant.
A magazine is not a clip!

Propellant

The substance which imparts movement to the projectile in a firearm. In a firearm, usually powder. In an airgun the propellant is air or Co2

Cartridge Overall Length

This is the maximum overall length the cartridge can be (and is expected to be) in order to function properly in magazines and the mag well of a bolt action rifle.

Keyhole

The tendency of a bullet to tip in flight and hit a target sideways, leaving a distinctly oblong hole. This destabilization of the spinning bullet in flight is typically caused by a bullet weight inappropriate for the rate of twist of the rifled barrel, an out-of-balance bullet or its having nicked an impediment such as a blade of grass, in flight.

POI

Abbreviation for Point of Impact

Load

A charge of powder, a projectile or a cartridge. Also, to prepare a gun for firing by inserting ammunition into it.

Loaded

A firearm is loaded when a cartridge is in its firing chamber. However, for safety reasons all firearms are always treated as loaded at all times.

Rifle Bedding

A process of filling gaps between the action and the stock of a rifle with an epoxy based material.

Fore-End

Also spelled Forend. That part of the stock forward of the action and located below the barrel or barrels. It is designed to give the shooter a place to hold the front end of the gun and protects the shooter's hand from getting burned on the hot barrel.

LDA

Abbreviation for Light Double Action

Fouling Shot

A fouling shot is a shot fired through a clean bore, intended to leave some residue of firing and prepare the bore for more consistent performance in subsequent shots. The first shot through a clean bore will behave differently from subsequent shots through a bore with traces of powder residue, resulting in a different point of impact.

Tap, Rack, Bang

The slang term for the procedure to clear a misfeed. To clear a misfeed, tap the base of the magazine firmly to be sure it is properly seated, rack the slide to eject an empty case or feed a new round, and assess to be sure your target still needs shooting. If it does, pull the trigger to create the bang.

Rifle

A shoulder-fired long gun which has a rifled barrel.

LCI

Abbreviation for Loaded Chamber Indicator

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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X-Frame The frame designation that Smith and Wesson uses for their extra large framed revolvers like the S&W Model 500 and S&W 460XVR X-Mark Pro A trigger system designed by Remington Arms Company. 17 Other Firearms Definitions You Need To Know Chamber The rear portion of the barrel or firing cylinder in which the cartridge is inserted prior to being fired. Rifles and pistols generally have a single chamber in their barrels, while revolvers have multiple chambers in their cylinders and no chamber in their barrel. Feed The action of moving live cartridges from the magazine of a firearm into the chamber. Lock Speed The same as Lock Time Magazine A secure storage place for ammunition or explosives. On a firearm, it is the container, either fixed to a firearms's frame or detachable, which holds cartridges waiting to be fed into the gun's chamber. Detachable magazines for the same gun may be offered by the gun's manufacturer or other manufacturers with various capacities. A gun with a five-shot detachable magazine, for instance, may be fitted with a magazine holding 10, 20, or 50 or more rounds. Box magazines are most commonly located under the receiver with the cartridges stacked vertically. Tube or tubular magazines run through the stock or under the barrel with the cartridges lying horizontally (like on a shotgun or lever action rifle. Drum magazines hold their cartridges in a circular mode (for example the famous drum magazine on a Thompson submachine gun). On a revolver, the magazine is known as the cylinder. Internal magazines are built into the firearm and are not removable. Examples of internal magazines are the tube magazines of a shotgun or the magazine on a Mosin Nagant. A magazine is not a clip! Propellant The substance which imparts movement to the projectile in a firearm. In a firearm, usually powder. In an airgun the propellant is air or Co2 Cartridge Overall Length This is the maximum overall length the cartridge can be (and is expected to be) in order to function properly in magazines and the mag well of a bolt action rifle. Keyhole The tendency of a bullet to tip in flight and hit a target sideways, leaving a distinctly oblong hole. This destabilization of the spinning bullet in flight is typically caused by a bullet weight inappropriate for the rate of twist of the rifled barrel, an out-of-balance bullet or its having nicked an impediment such as a blade of grass, in flight. POI Abbreviation for Point of Impact Load A charge of powder, a projectile or a cartridge. Also, to prepare a gun for firing by inserting ammunition into it. Loaded A firearm is loaded when a cartridge is in its firing chamber. However, for safety reasons all firearms are always treated as loaded at all times. Rifle Bedding A process of filling gaps between the action and the stock of a rifle with an epoxy based material. Fore-End Also spelled Forend. That part of the stock forward of the action and located below the barrel or barrels. It is designed to give the shooter a place to hold the front end of the gun and protects the shooter's hand from getting burned on the hot barrel. LDA Abbreviation for Light Double Action Fouling Shot A fouling shot is a shot fired through a clean bore, intended to leave some residue of firing and prepare the bore for more consistent performance in subsequent shots. The first shot through a clean bore will behave differently from subsequent shots through a bore with traces of powder residue, resulting in a different point of impact. Tap, Rack, Bang The slang term for the procedure to clear a misfeed. To clear a misfeed, tap the base of the magazine firmly to be sure it is properly seated, rack the slide to eject an empty case or feed a new round, and assess to be sure your target still needs shooting. If it does, pull the trigger to create the bang. Rifle A shoulder-fired long gun which has a rifled barrel. LCI Abbreviation for Loaded Chamber Indicator A B C D E F G H I J K L M N O P Q R S T U V W X Y Z	You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1

Letter X Firearms Glossary

17 Other Firearms Definitions You Need To Know