The Definition of Casehardening
A heat-treating process that incorporates carbon into the surface molecular
structure of the steel, providing a hard-wearing surface without making the entire
receiver brittle. The parts to be casehardened are packed in a crucible with
carbon-rich media such as bone meal and charcoal, heated to bright orange, about
1800°F, then quenched in bubbling oil. Also
19 Other Firearms Definitions You Need To Know
The practice of modifying military-type firearms either to make them suitable for civilian sporting use.
Common sporterizing includes changing the stock or sights.
The amount of rearward force exerted by the propellant gases on the bolt or breech of a firearm action or breech when a projectile is fired.
The applied force has both magnitude and direction, making it a vector quantity.
Abbreviation for Concealed Carry Permit.
A type of firearm in which the action is in the open position and the chamber empty prior to firing.
When the trigger is pressed the bolt moves forward, chambering a cartridge and firing it and returning
to the open position. When firing is stopped the bolt remains open and the chamber empty.
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.
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.
With the execption of the BP model series, Thunder is the name of all of Bersa's pistols.
The line currently consists of three frames.
• The Thunder .380 series, which is a very reliable and good looking compact blowback system .380 acp pistol (there is also a .22lr version).
• The full size Thunder Pro series (avalable in 9mm and .40 S&W) is a locked breech design.
• The Thunder Ultra Compact Pro series, locked breech, short recoil design which is more of a commander size Thunder Pro (available in 9mm, .40 S&W, and .45 acp).
The Bersa Thunders are well known among firearms enthusiasts for being extremely high quality guns at reasonable prices.
Typically used in the .22 caliber cartridge designation .22 Long Rifle, which is abbreviated .22LR.
There are two basic variants of the Isosceles stance, the
Traditional Isosceles and
Modern Isosceles stance.
In both Isosceles stances, the feet parallel pointing toward the target and are roughly shoulder width apart.
Both arms are stretched almost equally forward with the gun centered forward, creating the triangular shape which gives the stance its name.
The four rules of firearms safety,were originally introduced in the early 1900's by various shooting education sources (with varying phrasing, but same implications), they apply every single time a firearm is handled in any way or for any reason. The NRA
teaches the Three Rules of Safe Gun Handling.
Rule One: All guns are always loaded. (Treat all guns as if they are loaded, no matter what!)
Rule Two: Never point your firearm at anything you are not willing to destroy.
Rule Three: Never put your finger on the trigger unless your sights are on target (and you have made the decision to fire).
Rule Four: Be sure of your target and what is behind it.
Shooting a target at a very very close range.
An external, manual safety which is typically disengaged with the firing-hand thumb.
The correct technical term for the ability of a projectile to incapacitate an animal or human shot with a firearm. Incorrectly called Stopping Power.
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.
Any malfunction that results in no shot fired when the trigger is pulled. Commonly caused by a failure to feed, bad ammunition or a broken firing pin.
A malfunction in which the spent case fails to eject from a semi-automatic firearm and blocks the chamber.
As the fresh round is brought forward it cannot enter the chamber. It is cleared by
stripping the magazine from the gun, racking the slide several times to eject the spent case, and then reloading.
A catch built into the receiver of a break-open gun to keep the toplever in its extreme right position when the barrels are removed.
This device makes it slightly easier to remount the barrels. As the barrels are mounted and the breech closed,
the barrels contact some kind of release pin (marked with the arrow) and the toplever automatically returns
to the center locked position. Because, however, it requires a separate act to find and to depress this tiny
tab to re-center the toplever on a broken-down gun, this feature may be irritating when trying to put a gun away in its case.
A Muzzleloading long gun which has a completely smooth bore and is intended to fire a single projectile rather than a collection of shot.
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