The Definition of Center Of Mass
Center Of Mass
For self-defensive shooters, Center Of Mass (COM) represents the area of an attackers torso within which the most vital organs are likely to be disrupted by a gunshot.
Shooting to COM is considered the most expedient way to stop an assailant from continuing threatening behavior.
19 Other Firearms Definitions You Need To Know
The Monte Carlo comb came to rifles via shotgun stocks. It
rises well above the ordinary comb line of the stock at the
butt and tapers downward toward the point of the comb. This
raised portion of the stock lifts the face of the shooter and his
or her line of sight well above the standard elevation provided
by the classic style. However, the same amount of drop is
maintained at the buttstock. A shooter with a long neck who
often has trouble getting his or her face down far enough on
the comb of the regular stock benefits from the Monte Carlo
A flat piece of rubber which holds revolver cartridges preparatory to loading them into the revolver's cylinder. Similar to a moon clip
Also known as collimating sight or occluded eye gunsight, a Collimator Sight is
a type of optical "blind" sight that allows the user looking into it to see an illuminated aiming point aligned
with the device the sight is attached to regardless of eye position (parallax free).
The user can not see through the sight so it is used with both eyes open while one looks into the sight,
with one eye open and moving the head to alternately see the sight and then at the target, or using one
eye to partially see the sight and target at the same time.
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.
A shotgun with two barrels which are situated next to each other. Somtimes also abreviated as SxS.
A firearm that can be separated into (at least) two subassemblies in order to make a shorter package than when put together, without tools.
There is no specific requirement regarding how this disassembly must be accomplished; the mechanical design is up to the creativity of the maker.
This arrangement allows for more convenient transportation of a firearm, but with rifles, where the action normally separates from the barrel, usually at a small sacrifice in accuracy.
Takedown firearms can also be called take-apart firearms.
Good examples of a takedown guns are the Henry AR-7 Survival Rifle, the Ruger 10/22 Takedown or the TNW Aero.
Anything a person can hide behind that will probably stopp a bullet.
More correctly a "rifled slug" or "shotgun slug." An individual cylindrical projectile designed to be discharged from a shotgun. The term is often incorrectly used to mean a Bullet.
Also spelled "+P" or "P+".
Is small arms ammunition that has been loaded to a higher internal pressure than standard for it's caliber.
Many calibers are available in both standard and +p or +p+ variants. Ammunition marked +p produces more power
and higher pressures than the standard ammunition. Not all firearms are designed to handle the increased
pressure consult your owner's manual or gun manufacturer before using +P ammunition.
To pull the trigger and release the hammer of a firearm without having a cartridge in the chamber.
The spotter is a helper who gives the shooter guidance on how to hit a particular target.
In some cases the spotter may just report the location of the bullet impact. In other cases they may judge the speed and direction of
the wind, determine the range, and give the shooter the settings to be used on the sights.
The abbreviation for Automatic Colt Pistol.
It is commonly used to designate specific calibers, particularly those which were originally designed by John Moses Browning for the
Colt Firearms Company which are a type of rimless pistol cartridge designed mainly for use in semi-automatic pistols.
The most common ACP calibers are .25 ACP, .32 ACP, .380 ACP and .45 ACP.
A needle like metal part of a modern firearm that gives a vigorous strike to the primer initiating the firing of the cartridge.
A firearms manufacturer located in the city of Ramos Mejia in Argentina. The company was founded in the mid-1950s by Italian immigrants Benso Bonadimani, Ercole Montini and Savino Caselli,
all of them mechanical engineers with experience working for Beretta.
Bersa is most famous for their Bersa Thunder .380 pistols and the Thunder Ultra Compact Pro Pistols (available in 9mm, .40 S&W and .45 acp).
The full size Thunder combat (Thunder 9) pistol is the standard sidearm of the Argentina Armed Forces, Buenos Aires Provincial Police and several other law enforcement agencies in South America.
The company is well known among firearm enthusiasts for producing high quality guns at reasonable prices and it spends little money on advertisement.
Lifetime warranty coverage is provided to the original owners. They are strong and well built, nicely engineered, accurate, visually appealing and very reliable.
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.
A needle gun is a bolt-action firearm (the first known type of bolt action rifle) that has a needle-like firing pin, which can pass through fully self-contained (paper) cartridge case to strike a percussion cap at the bullet base.
The first experimental needle gun was designed by Jean Samuel Pauly, a Swiss gunsmith, in 1812.
The first mass-produced needle gun was invented by the German gunsmith Johann Nicolaus von Dreyse, who, beginning in 1824, had conducted multiple experiments, and in 1836 produced the first viable breech loading gun model using a complete cartridge .
A Muzzleloading long gun which has a completely smooth bore and is intended to fire a single projectile rather than a collection of shot.
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 smooth bore long gun that shoots a group of pellets called shot instead of bullets.
Depending on the bore size and the size of the pellets there may be from less than 10 to two hundred or more pellets in a single shotgun cartridge.
Shotguns are designed for shooting moving targets (such as flying birds or running rabbits) at close range.