Air pistol

   A pistol that uses compressed air or carbon dioxide to discharge lead pellets.

   Air rifle

   A rifle that uses compressed air or carbon dioxide to discharge lead pellets.

   Air gun

   A rifle or pistol that uses compressed air or carbon dioxide to discharge lead pellets.

   Barrel

   The tube of a gun.

   Blinkers

   Devices sometimes affixed to the sides of shooting glasses to keep the wind out of shooters' eyes and prevent distraction from motion to the side.

   Bunker

   A long concrete structure in front of a firing line from which machines throw clay targets in trap shooting; also known as a "trench".

   Cartridge

   The complete unit of ammunition, including the projectile, case, powder and primer.

   Chamber

   The rear portion of a gun barrel into which a cartridge is inserted for firing.

   Choke

   A narrowed part of a shotgun barrel, as in a chokebore.

   Chokebore

   A bore in a shotgun that narrows toward the muzzle to prevent shot from scattering too widely.

   Clay target

   A saucer-shaped target of clay.

   Metallic sight

   A non-magnifying device on the front or rear end of a firearm to assist aim.

   Free pistol

   A .22-calibre pistol relatively free of specifications.

   Magazine

   A receptacle for a number of cartridges which is inserted into a firearm and must be removed and replaced when empty.

   Pistol

   A short firearm intended to be held and fired with one hand.

   Rifle

   A shoulder firearm with spiral grooves cut in the inner surface of the gun barrel to give the bullet a rotating motion and render its flight more accurate.

   Shotgun

   A smooth-bore firearm for firing round shot.

   Stock

   The wooden, metal, plastic or fibreglass portion of a rifle or shotgun to which the barrel, action, trigger, etc. are attached.

   Trap

   A device for suddenly releasing or tossing clay targets into the air in trapshooting.

   Trench

   A long concrete structure in front of a firing line from which machines throw clay targets in trap shooting; also known as a "bunker".

   Trigger

   A small projecting piece which, when squeezed with the finger, operates the mechanism and discharges a firearm.

Credit: IOC

For further info., please visit http://www.olympic.org/uk/sports/programme/disciplines_uk.asp?DiscCode=SH.