Letter: B

A chamber with an abnormal enlargement.

A localized enlargement of the barrel bore typically caused by the firing of a round into an obstruction within the barrel. If the bulge is circumferential: See Ring Bulge.

A slang term for Bullseye of Target. See Bullseye.

A firearm built with an extra-thick, heavy barrel, used primarily for target shooting or varmint hunting.

A shoulder-fired firearm in which the action is behind the fire control system.

A non-spherical projectile for use in a rifled barrel and sometimes contained within a sabot.

A process for making lead bullets by pouring molten metal into a mold.

The inner section of a jacketed bullet, usually lead.

The movement of a bullet out of the cartridge case due to the recoil of the firearm (and the inertia of the bullet) when firing another cartridge in the firearm.

The maximum dimension across the largest cylindrical section of a bullet.