The position, in relationship to each other, in which multiple barrel systems are found in forearms. (e.g. over and under, side-by-side, etc.)

A projectile designed to readily break up upon impact on a hard surface in order to minimize ricochet or spatter.

A bullet with a partial jacket exposing a lead nose.

The conical part of the bore between the chamber and the rifling. Also called Throat or Ball Seat.

See Barrel, Damascus.

A recommended safety practice utilizing approved earplugs or muffs.

1. The combination of components used to assemble a cartridge or shotshell.2. The act of putting ammunition into a firearm.

An electrical or optical device which signals the passage of shot or a projectile at the muzzle of a firearm.

A descriptive term for a soft point, hollow point or special type of bullet point that is designed to expand to increased sectional diameter.

1. A condition where the normally rounded corners of a fired primer cup are squared due to internal pressures.2. A primer cup configuration in which the crown is flattened to alter sensitivity.