Proof Research PXT Bolt Action Barrel Blank 308 Win 16.5" 1:10 Twist Carbon Fiber Sendero

The Proof Research PXT pre-fit bolt action barrel blank is built around the .308 Winchester cartridge for custom precision rifle builds. This 16.5-inch barrel features a 1:10 twist rate in a heavy Sendero contour - Proof Research's heaviest standard profile, designed for maximum rigidity and match-grade accuracy.

Constructed with Proof Research's signature carbon fiber wrapped stainless steel design, this PXT blank pairs the stiffness of a heavy benchrest-class contour with the weight savings of carbon fiber jacket technology. The action end is pre-machined to a 2.5" breech length with a 1.20" shank diameter, allowing drop-in installation on the intended action. Net weight on this 16.5" Sendero blank is 2 lbs 6 oz.

The PXT pre-fit design eliminates the need for additional gunsmithing to fit the breech, making it well suited for custom rifle builders seeking a straightforward installation. Combined with the heavy Sendero contour and match-grade accuracy potential, this .308 Winchester barrel is an excellent foundation for precision and long-range shooting applications.