Letter: M

Firearm which can only be loaded with powder and projectile(s) through the muzzle or front end of a cylinder in the case of a muzzleloading revolver.

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

The air that is compressed and moves out radially from the muzzle of a firearm after firing a projectile.

The velocity of a projectile as it exits the muzzle of a firearm.

The generally upward motion of the muzzle of a firearm which occurs upon firing.

A bullet that has expanded upon impact into a mushroom-like shape.

The act of expansion of a bullet upon impact with a target.

A descriptive term for the post-impact profile of a bullet that is designed to expand upon striking a target.

A type of open, rear sight having more than one folding leaves. It may also have one fixed leaf.