BULLET TRAP

A device to safely stop a bullet in flight. Usually found in indoor ranges behind the target area.

BULLET UPSET

1. In Interior Ballistics: The change of bullet form due to chamber pressure. 2. In Exterior Ballistics: The expansion of a bullet upon impact with target.

BULLET WOBBLE

A characteristic caused by the eccentricity or imbalance of the bullet to the axis of the bore. See Yaw.

BULLET-PUSH

The force required to shorten a cartridge by pushing on the bullet.

BULLSEYE

In target shooting, the aiming point.

BUTT

1. Handguns: Bottom part of the grip. 2. Long Guns: Rear or shoulder end of the stock.

BULLET MOLD

A split block of metal having one or more cavities into which molten lead is poured to form a bullet.

BUTT PLATE

A metal, rubber or composition covering to reinforce and protect the shoulder end of a firearm stock.

BUTT STOCK

The rear or butt end of the firearm which is normally placed against the shooter’s shoulder.