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Glossary Results

F - 50 matching terms

FAIL-TO-FIRE
A failure of the firearm to discharge after the trigger has been pulled. It can be one of two types: 1.) a complete misfire, or 2.) a delayed fire.

FEED MECHANISM, AUTOMATIC
A system for reloading a firearm utilizing some of the energy realized from firing a cartridge.

FEED RAMP
See Cartridge Ramp.

FEED THROAT
A component which guides a cartridge from the magazine to the chamber.

FINGER LEVER
See Lever, Operating.

FIRE CONTROL
1. A device mounted in a firearm whose position determines the firing mode - e.g., full automatic, semiautomatic, etc.
2. See Trigger Plate Assembly

FIRE, DRY
See Dry Firing.

FIRE-FORM
See Case, Fire-Forming.

FIREARM
An assembly of a barrel and action from which a projectile is propelled through a deflagration of propellant.

FIRING-PIN
That part of the firearm mechanism which strikes the primer or the rim of a cartridge to initiate ignition in order to fire the cartridge.

FIRING-PIN INDENT
1. The impression made by the firing-pin in the primer cup of the centerfire primer or the rim of rimfire cartridges.
2. A measure of the kinetic energy delivered by the firing-pin.

FIRING-PIN PROTRUSION
The distance the firing-pin protrudes from the breech face when it is in its most forward position.

FIRING-PIN, FLOATING
A type of firing-pin which is unrestrained by a spring or other mechanical means.

FIRING-PIN, INERTIA
A type of firing-pin in which the forward movement is restrained until it receives the energy from a hammer blow. It is slightly recessed in the breech face before being struck by the hammer and is shorter in length than the housing in which it is contained. Upon hammer impact, it flies forward using only its own kinetic energy to fire the primer.

FIVE-IN-ONE BLANK
A blank cartridge that was designed for use in firearms of different calibers. It can be used in caliber 38-40, 44-40, and 45 Colt revolvers and in caliber 38-40 and 44-40 rifles.

FIXED AMMUNITION
See Ammunition, Fixed.

FLAKE POWDER
See Powder, Flake.

FLASH HIDER
See Flash Suppressor.

FLASH HOLE
1. A hole pierced or drilled through the center of the web in the primer pocket in a metallic cartridge case.
2. The hole in the end of a battery cup primer used in shotshells.

FLASH SUPPRESSANT
A material that is added to propellant for the purpose of reducing muzzle flash.

FLASH SUPPRESSOR
A muzzle attachment designed to reduce muzzle flash. Also called Flash Hider.

FLAT NOSE PROJECTILE
See Projectile, Flat Nose

FLINT LOCK
A muzzleloading firearm ignition system wherein a piece of flint is secured to the hammer in such a manner as to strike steel upon hammer release, causing sparks which ignite powder contained in the ignition system, for subsequent ignition of the main powder charge.

FLOOR PLATE
The bottom of a box magazine. May be hinged, sliding or immovable.

FLUTING
1. See Oil-Dent.
2. Longitudinal grooves in the sidewall of a firearm chamber.
3. See Barrel, Fluted.

FLYER
1. A shot considerably outside the normal group on a target.
2. A shot considerably outside the normal range with regards to velocity or pressure.

FOIL
Part of a primer. See also Disc, Paper.

FOLLOWER
That part in a firearm which, through the action of a spring, forces a cartridge or cartridges to move.

FORCING CONE
See Cone, Forcing.

FORE-END
The forward part of a one-piece stock. Sometimes called a Forearm.

FORE-END, ANSON FASTENING
A fastening method of the fore-end of double barreled shotguns which utilizes a spring loaded bolt that extends beyond the tip of the fore-end. A British term.

FORE-END, BEAVERTAIL
A wider than normal, usually flattened, forward part of a stock.

FORE-END, IRON
On firearms with a one-piece stock, an intermediate part that holds the wood against the barrel and frame and retains the latch mechanism.

FOREARM
The forward part of a two-piece stock. Sometimes called Fore-end.

FOREARM, BEAVERTAIL
A wider than normal, usually flattened, forward part of a two-piece stock.

FORGING, UPSET
A gun barrel blank formed by hammering a steel bar to increase its diameter at one end for the purpose of providing a shank section.

FORM FACTOR
See Coefficient of Form.

FRAME
See Receiver.

FRAME, SOLID
1. In shoulder arms, a firearm in which the barrel and receiver are not designed for quick disassembly.
2. In handguns, having a frame that is not hinged.

FRANGIBLE PROJECTILE
A projectile that breaks up readily upon impact.

FREE BORE
A cylindrical length of bore in a firearm just forward of the chamber in which rifling is not present. Associated with bullet jump.

FREE TRAVEL
See Bullet Jump.

FRENCH CHECKERING
See Checkering, French.

FRICTION RING
A metallic ring surrounding the magazine tube to retard the opening velocity of a recoil operated shotgun.

FULL JACKETED PROJECTILE
See Bullet, Full Metal Jacket.

FULL LENGTH RESIZING
See Resizing, Full Length.

FULL METAL JACKET
See Bullet, Full Metal Jacket.

FULL-COCK
The position of the hammer or striker when the firearm is ready to fire.

FUSED SHOT
See Shot, Fused.

FUSING
1. The balling of lead shot due to gas leakage.
2. The melting of the core of a jacketed bullet.
3. The melting of a lead alloy bullet.

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N O P Q R S T U V W X Y Z

Abbreviations:

A-L | M-Z