Proof Research .224 18" 1:8 Bolt Action Rifle Barrel

An 18 inch bolt action rifle barrel from Proof Research in a .224 bore. Eighteen inches is short for a .224 centerfire and that is the point of it: the rifle stays quick in the hands, and adding a suppressor does not turn the whole thing into a pike you cannot get through a door or a blind window. The 1:8 twist is the modern standard for the long, heavy .22 caliber bullets that make these cartridges shoot at distance.

Proof Research built its name on barrels, and this one is listed by bore, length and twist rather than by cartridge or action pattern. Confirm the chambering and the shank against your rifle before you order.