Proof Research 308 Win 20 Inch Pre Fit Barrel Drop In Sig Cross Twist 1 to 10

The Proof Research 134498 Bolt Action Barrel Pre-Fit 308 Win 20" 1:10" Twist (5 Groove), 5/8"-24 tpi Threaded, Stainless Steel, Drop-In Design for Sig Cross delivers a precision-ready platform designed for improved accuracy and reliability in the field. Built in stainless steel with a 20" length and a 1:10" twist across a 5-groove bore, this barrel is engineered to optimize accuracy with the reliable performance you expect from Proof Research. The 5/8"-24 threaded system supports straightforward installation and secure, repeatable muzzle threading for compatible accessories. Its drop-in design for Sig Cross ensures a seamless fit, enabling hunters and precision shooters to upgrade their rifle without bespoke machining or extensive fitting. This pre-fit barrel is purpose-built for .308 Win, offering consistent chambering that bolsters velocity and project consistency across engaging distances, whether stalking mature game or conducting long-range practice. With a stainless finish that resists the elements and maintains a clean appearance, this barrel is a practical upgrade for shooters seeking enhanced rigidity, heat management, and enduring accuracy in a rugged, field-ready package.