The Definition of Bluing
Also spelled blueing.
A passivation process in which steel is partially protected against rust, and is named after the blue-black appearance of the resulting protective finish.
True gun bluing is an electrochemical conversion coating resulting from an oxidizing chemical reaction with iron on the surface selectively forming magnetite
(Fe3O4), the black oxide of iron, which occupies the same volume as metallic iron. Bluing is most commonly used by gun manufacturers, gunsmiths and gun
owners to improve the cosmetic appearance of, and provide a measure of corrosion resistance to, their firearms.
19 Other Firearms Definitions You Need To Know
A type of backstop that catches the fired bullet and prevents it from exiting the area. Bullet traps are most commonly used on indoor ranges.
A form of rifling where the helical angle (pitch) sharpens progressively down the bore in the interest of maximizing the bullets ultimate rotational speed by initiating it slowly.
An established place where firearms and ammunition are stored, repaired, or manufactured.
The term is misused by the media to mean more than one firearm or any quantity of ammunition, as in "they found an arsenal."
Generally refers to a .32 calibre or smaller firearm.
A type of firearm which, utilizing some of the recoil or some of the expanding-gas energy from the firing cartridge,
cycles the action to eject the spent shell, to chamber a fresh one from a magazine, to cock the mainspring and to fire again.
Such a firearm will fire continuously as long as the trigger is held back, until the magazine is empty. A machine gun.
A firearm thus activated, but which shoots only one bullet with each separate pull of the trigger,
while often erroneously referred to as "automatic" is properly termed Semi-Automatic.
A sliding bar, running longitudinally through the watertable of a break-open side-by-side gun's action, with openings through which the
lumps of the barrels pass when the gun is closed. Under spring tension, this bar moves forward when the opening control is released and its
two locking surfaces engage complementary slots (bites) in the rear of the two barrel lumps. Originally operated by a hinged tab in front
of the trigger guard. Now invariably operated by a cam from Scott's [toplever] spindle. Most modern side-by-side guns lock closed in this manner.
A misfeed or other failure to fire which can be cleared on the spot and without tools.
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.
Usually a telescopic firearm sight.
A type of machine gun or autocannon that uses an external source of power to cycle the firearm.
Violent Crime Control and Law Enforcement Act of 1994.
It is an act of Congress dealing with crime and law enforcement that became law in 1994.
Of the sections of the bill, it included the Federal Assault Weapons Ban.
A popular term for a short barreled repeating shotgun as frequently used in law enforcement and personal protection.
A firearm loaded through the breech.
A mounting point on a small arm that allows a bayonet or other accessory to be attached.
An action type that when the trigger is pulled, the only thing the trigger does is drop the hammer (or striker).
This applies to both revolvers, semi-automatic and automatic guns.
On a single action revolver, the gun must be manually cocked before it can be fired.
With semi-automatic and automatic guns that are single action, the only thing the trigger does is drop the hammer, striker or firing pin onto the cartridge.
Then the firearm is cocked again when from the recoil of the fired round.
A firearm that the gun is cocked and the hammer drops when the trigger is pulled is a double action gun.
An economical method of bringing new life to a damaged pair of barrels, regardless of their original method of jointing.
The ribs are removed. The barrels are cut off 3" - 4" from the breech end and discarded. The bores of the remaining breech-end are reamed out oversize.
New tubes are fitted down into the original breech section and filed down to fit flush. The original ribs are then replaced. Sleeving is considerably less expensive than building a completely new set of barrels. Much of the time required to build a set of barrels is concentrated in the fitting of the breech end to the receiver; this work is salvaged through sleeving. Sleeving can be recognized by a pair of circumferential lines around the barrels a few inches from the breech; the more invisible, the finer the job. A sleeved gun should always be identified as such amongst the proof marks, and if done in England must be properly reproofed. Photo
Sleeving is not the same thing as Monoblocking.
The size of the pellets in a shotgun shell.
A tip for a cleaning rod, a jag, with spirally-radial wires for vigorously scrubbing a gun's bore.
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