The Definition of Parabellum
Latin word meaning "for war." It is actually the proper name of the semiautomatic pistol commonly known in the USA as the "Luger.
Because of that pistol and the ammunition created for it, the common 9mm cartridge used nowadays is also known as 9mm Parabellum or 9mm Luger."
19 Other Firearms Definitions You Need To Know
A slang term for a small inexpensive handgun. Saturday night specials have been defined as compact, inexpensive,
small-caliber handguns with perceived low quality; however, there is no official definition of "Saturday night special" under federal law,
though some states define "Saturday night specials" or "junk guns" by means of composition or materials strength.
Low cost and high availability make these weapons attractive to many buyers despite their shortcomings.
The paper filler at the rear of the powder charge of the shotgun shell.
The distance between the rear sight and the front sight. As a longer lever provides greater mechanical advantage, the greater the distance between the two sights, the more inherently accurate they will be.
A gun with more than one barrel, the most common being the double-barreled shotgun.
A long gun stock that may be doubled over for conveniently compact storage.
Short for the word Ambidextrous. Meaning that a feature of a firearms can be used by either hand, for example ambi-safety, ambi slide catch or ambi mag release.
The distance from the front trigger of a shotgun to the centre of the butt.
A misfeed or other failure to fire which can be cleared on the spot and without tools.
One of the three major dismountable components of a break-open gun (the others being the barrel(s) and the action/buttstock)
which secures the barrels to the receiver, often houses the ejector mechanism, and for some, provides a handle for the one's secondary hand.
The setting on the sights used to accommodate the wind or adjust for horizontal (side-to-side) errors in the alignment of the sights with the bore of the firearm.
Anything that will safely stop a bullet and prevent it from hitting anything else after the target is struck.
A soft appendage, usually of some kind of rubber, often fitted to the butt end of a shoulder-mounted firearm to reduce the sensation of recoil.
A recoil pad has the additional benefit of being less vulnerable to damage than a checkered wood butt or a brittle horn or plastic buttplate.
The departure of a bullet or shot charge from the normal line of flight. This can be caused by wind or the unbalanced spinning of the bullet.
The slang term for the procedure to clear a misfeed. To clear a misfeed, tap the base of the magazine firmly to be sure it is properly seated,
rack the slide to eject an empty case or feed a new round, and assess to
be sure your target still needs shooting. If it does, pull the trigger to create the bang.
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.
The area inside the bore nearest to the muzzle.
Slang word for short barreled revolver.
The amount of change in the bore axis, measured both vertically and horizontally, while the projectile moves from the chamber to the muzzle when it is fired.