HANDLOADING

The process of manually assembling a cartridge from component parts (casing, primer, propellant and bullet or wads and shot).

HANDGUN

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

HAND TRAP

A small, hand-operated target throwing device.

HALF COCK

The position of the hammer, when about half retracted and held by the sear, intended to prevent release of the hammer by a normal pull of the trigger. This can be the safety or loading position of many guns.

HAIR TRIGGER

A slang term for a trigger requiring very low force to actuate. Sometimes used to describe the light pull of a second trigger in a double set trigger mechanism.

HALF COCK SAFETY

The position of the hammer, when about half retracted and held by the sear, intended to prevent release of the hammer by a normal pull of the trigger. This can be the safety or loading position of many guns.

HALF STOCK

A rifle stock with a fore-end which extends approximately to the midpoint of the barrel.

HAMMER

A component part of the firing mechanism which strikes the firing pin or primer
sometimes through one or more transfer members. A firearm may have a concealed
hammer or an exposed hammer.

HAMMER BLOCK

A device intended to isolate the hammer from the firing-pin except when the trigger is pulled.

HAMMER FORGED

The process of forming the interior and/or exterior shape of the barrel of a firearm by pneumatic or hydraulic hammers. Also called Hammered Barrel; Hammered Forged Rifling, Hammer Forged.