The Definition of Mercury Recoil Compensator
Mercury Recoil Compensator
A device fitted inside the buttstock of a heavily-recoiling gun or rifle, usually containing mercury and a valve.
As the gun recoils, the mercury is displaced temporarily, increasing the duration, and thus diminishing the
perceived impact of the recoil. The added half-pound of weight doesn't hurt either.
19 Other Firearms Definitions You Need To Know
A metal surface which contains a pattern of ridges or beads.
The Chapman stance uses the same push-pull tension which defines the Weaver,
but instead of both elbows being bent, the gun side elbow is held straight and locked in place.
Assuming a right-handed shooter, the right arm is punched straight out, while the left elbow is bent and the left hand pulls back to provide tension. As a result of this change, Chapman gets its stability
from both muscle and skeletal support. This makes it a little more friendly than Weaver for those who lack upper-body muscle strength.
Failure of a spent case to completely eject from a semi-automatic firearm. The case usually stands on end while lodged in the ejection port.
A condition on a shooting range that is completely safe. Any firearms at the range are on the benches, unloaded with open actions and all people have stepped away from the firing line.
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 Arsenal Exchange or ArsenalExchange.com. Example in a sentence is "Have you seen the latest postings on AE?
AE is also the abreviation for Action Express. .50 Action Express (.50 AE) is a large caliber handgun cartridge. It was developed in 1988 by Evan Whildin of Action Arms.
The use of an electric current to fire a cartridge, instead of a percussion cap. In an electronic-fired firearm an electric current
is used instead to ignite the propellant, which fires the cartridge as soon as the trigger is pulled.
The small dished container located on the side or top of a matchlock, wheel-lock or flintlock forearm used to hold the priming powder charge.
A handgun or rifle shooting sport in which the competitors attempt to knock over metallic game-shaped targets at various ranges.
The distance from the front trigger of a shotgun to the centre of the butt.
The official US military designation for the Colt .45 semiautomatic pistol adopted by the US in 1911.
The gun was designed by John Moses Browning, and produced by Colt.
During trials, the Browning-Colt design beat out several competing designs, including one from Savage and a .45 caliber version of the German Parabellum ("Luger").
The M1911 saw its first combat in the Philippines and then in World War I.
Early use showed that it could be improved and in 1921 the M1911A1 was introduced, which featured a few changes like a reocontoured frame,
shorter trigger, and a rounded backstrap. The M1911A1 remained the standard US military handgun until it was replaced in the 1980's by the Beretta M9.
However, it remains very popular with civilian shooters in the US, and has been modified extensively to update it to
conform to more modern theories of handgun usage.
A second sear, poised just behind a second notch in the hammer. It is possible that when a cocked firearm is dropped or sharply jarred, a
single sear could jump out of its notch and the hammer could fall, firing the gun accidentally. In this event, an intercepting sear
would engage before the hammer could fall completely, preventing an accidental discharge. On a gun with intercepting sears, only
by pulling the trigger are both sears moved out of the way simultaneously, allowing the gun to fire.
Intercepting sears are usually found on better sidelock actions. They are sometimes found on best boxlocks,
and can be recognized by an extra screw behind the action fences, in addition to the usual two screws (or pins) along the lower rear of the receiver.
The hinged cover over the opening through which cartridges are inserted into the magazine.
Any gun that can be used in a sport.
A muzzle flash is the visible light of a muzzle blast, which expels high temperature, high pressure gases from the muzzle of a firearm.
The blast and flash are caused by the combustion products of the gunpowder, and any remaining unburned powder,
mixing with the ambient air. The size and shape of the muzzle flash is dependent on the type of ammunition being
used and the individual characteristics of firearm and any devices attached to the muzzle (such as a muzzle brake or flash suppressor)
Usually referred to as a Kentucky Long Rifle or simply Longrifle, the Kentucky Rifle is a flintlock rifle with a long barrel and short, crooked stock. It is widely believed to be a largely unique development of American rifles that was uncommon in European rifles of the same period.
The Kentucky Long Rifleis an early example of a firearm using rifling, (spiral grooves in the bore). This gave the projectile, commonly a round lead ball, a spiraling motion, increasing the stability of the trajectory.
Rifled firearms saw their first major combat usage in the American colonies during the Seven Years war, and later the American Revolution in the eighteenth century.
Refers to a visible dark ring created by the primers in centerfire ammunition around the firing pin hole in the frame after much use.
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