The Definition of Primer
A small metal cup that contains a tiny explosive charge that is sensitive to impact.
A primer is placed in the base of a shell casing to ignite the powder of the completed cartridge.
It is detonated by the striking of a firing pin in the firearm.
19 Other Firearms Definitions You Need To Know
A mark within a border, typically
stamped into the wood, especially of an American military rifle. It shows the
initials of the name of the accepting inspector and often, the date he accepted
the firearm into service.
The accumulation of unwanted material on solid surfaces. The fouling material can consist of either powder, lubrication residue, or bullet material such as lead or copper.
A type of cartridge whose bullet diameter is substantially less than the body diameter of the casing.
A cartridge in which the base diameter is the same as the body diameter. The casing will normally have an extraction groove machined around it near the base,
creating a "rim" at the base that is the same diameter as the body diameter.
A black powder muzzleloading firearm action which relies upon a serpentine or S-shaped piece of metal to hold a smoldering match.
By pressing the lower end of the serpentine,
the upper end holding the burning match contacts the priming powder in the pan.
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.
A claw [scope] mount with openings through which a shooter can use a rifle's iron sights without removing the scope.
Barrel tubes built up by twisting alternate strips of iron and steel around a fixed rod (mandrel) and forge-welding them together in varying combinations
according to the intended quality and the skill of the maker. The rod was withdrawn, the interior reamed and the exterior filed until the finished tube was achieved.
Damascus barrels may be recognized by any of a variety of twist or spiral patterns visible in the surface of the steel.
Before the 20th century, barrels were typically built in this manner because gunmakers did not have the technology to drill
a deep hole the full length of a bar of steel without coming out the side.
Anything a person can hide behind that will probably stopp a bullet.
Abbreviation for feet per second. A term used in expressing the velocity of a bullet.
To tilt a gun to one side or the other,
complicating sighting considerably. Can cause material loss of accuracy,
particularly with a rifle at longer ranges. Some better long range target rifles
are equipped with Spirit Level sights
to help control canting.
Abbreviation for Cartridge Overall Length.
A family of smokeless propellants developed and produced in the United Kingdom from 1889 to
replace gunpowder as a military propellant. Like gunpowder, cordite is classified as a low
explosive because of its slow burning rates and consequently low brisance.
The hot gases produced by burning gunpowder or cordite generate sufficient pressure to propel a bullet or shell to its target,
but not enough to destroy the barrel of the firearm, or gun.
A misfeed or other failure to fire which can be cleared on the spot and without tools.
Is that combination of caliber, barrel length, bullet weight, and case volume which does not
allow the complete burning of the charge of ballistically correct powder within the volume of case and barrel.
A stock on a long gun that can be shoved into itself to shorten it, either for storage or to make the gun fit shooters of different sizes.
The earliest type of gun, now also popular as modern-made replicas, in which blackpowder and projectile(s) are
separately loaded in through the muzzle. The term is often applied to cap-and-ball revolvers where the loading is
done not actually through the muzzle but through the open ends of the cylinder's chambers.
The term used for the casing on modern rifle and pistol ammunition. It is usually made out of brass but can also be aluminum or steel.
The casing on a shotgun shell is usually refered to as a hull
Ear muff or ear plug hearing protection that have internal electronics that amplify human voices while excluding all noises louder than a given decibel rating.
Electronic hearing protection is best used when shooting outdoors. When on an indoor range they have a tendency to pick up too much echo and other muffled sounds.
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