Proof Research 144374 7mm PRC 20" 1:8 Twist 5/8-24 Pre-Fit Stainless Barrel

The Proof Research 144374 pre-fit bolt-action rifle barrel is chambered in 7mm PRC and machined from double stress-relieved 416R stainless steel with a stainless finish. Part of Proof Research's Pre-Fit Series, the 144374 ships with the barrel extension pre-installed for straightforward installation on compatible bolt-action actions, removing the need for gunsmith headspacing on most custom builds.

At 20 inches with an 1:8 twist, this barrel is optimized for the heavy, high-ballistic-coefficient projectiles the 7mm PRC cartridge was designed to drive, giving long-range shooters and handloaders a turn-key path to precision performance. The muzzle is cut with 5/8-24 threads for the easy installation of a suppressor or muzzle brake.

Proof Research barrels are engineered and stress-relieved in-house in the USA to match-grade standards for accuracy, consistency, and repeatable performance. This is a current-production Proof Research component, manufacturer part number 144374, sold as a new factory-fresh pre-fit barrel ready for installation.