Letter: B

A flat, low profile, paddle-shaped bolt handle found on some rifles.

A process wherein a hardened steel disc or button with a rifling cross section configuration is pushed or pulled through a drilled and reamed barrel so as to cold form the rifling grooves to the desired depth and twist.

The process of forming spiral rifling grooves in the barrel of a firearm by a tool having a series of cutting edges each slightly larger than the preceding.

A chemical oxidation process to color metallic parts of a firearm a brownish black shade.

A rear sight for hunting rifles that has the V notch at the bottom of an almost completely closed “U.”

Lead pellets ranging in size from .24” to .36” diameter normally loaded in shotshells.

1. In a firearm, any part intended to absorb shock, reduce impact or check recoil. 2. In a shotshell, any material added to the shot to prevent deformation during firing.

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.