Letter: H

A front sight that is provided with a cover to shade it from direct light.

A notch machined into a lump used to mate with the hinge pin.

The greatest horizontal distance between any two bullet holes on a target, normally measured center-to-center.

A slang term for a cartridge or shotshell case.

A cylindrical member at the forward end of a frame about which the barrel or barrels pivot. Also called a Joint Pin.

An action in which the barrel(s), one or more being either smooth or rifled, is pivoted on the frame. When the action is open, the barrel may pivot up or down or sideways for loading or unloading. When the action is closed, the breech of the barrels swings against the standing breech. Opening is normally accomplished by movement of a top, side, or under lever. A top break action is an example of a hinged frame action.

A small, hand-operated target throwing device.

A trigger which is hinged to fold forward.

A firearm designed to be held and fired with one hand.

A bullet with a deep heel cavity.