Letter: B

A cartridge with a case design having an enlarged band ahead of the extractor groove. This design was originally intended to headspace cartridges with an insufficient shoulder angle (i.e. 300 H&H Magnum, 375 H&H Magnum).

A table specifically designed to eliminate as much human error as possible by supporting a rifle for competitive shooting or for sighting-in purposes.

A rifle designed for optimum accuracy while being shot from the shoulder and supported by a specifically designed table (rest).

Generally, a large and heavy stock used exclusively for benchrest shooting.

A ring shaped attachment on the barrel of many shotguns which encircles the magazine tube. Sometimes called Magazine Tube Bracket.

A tube that surrounds the barrel.

On shoulder arms and most handguns the distance between the muzzle of the barrel and the face of the breech block or bolt. On revolvers, it is the overall length of the barrel only, including the portion within the frame.

The total number of rounds fired in a barrel before it becomes unserviceable.

A general term for any projection extending at right angles to the barrel.

Also called bore obstruction. A foreign object or material in the bore of a barrel which prevents unhindered passage of projectile(s) when fired.