Proof Research Bolt Action Barrel Blank 264 Cal 28 Contour 1:7.5 Twist 4 Grooves

The Proof Research 113721 Bolt Action Barrel Blank 264 Cal 28" Competition Contour 1:7.50" Twist 4 Grooves in Stainless brings high-end precision and durability to rifle builders and enthusiasts seeking a reliable foundation for a competition-ready bolt action. Crafted with a stainless finish and a rifled bore, this 28-inch blank barrel features a competition contour that balances aerodynamic efficiency with rigidity, enabling consistent muzzle velocity and reduced harmonics across strings of fire. The 1:7.50-inch twist rate and four-groove rifling are optimized for accurized performance with a wide range of 264 caliber projectiles, delivering stable stabilization and tight group potential when paired with quality components. As a bolt action barrel blank, it provides a clean slate for exacting chambering and headspacing, allowing builders to tailor fitment to their action and chassis system while preserving the renowned Proof Research standard of concentricity and straightness. Ideal for precision shooters, match-grade builds, and serious hunters, this stainless barrel blank supports long-range performance with dependable heat resistance and corrosion protection, making it a solid foundation for a capable, high-performance bolt action rifle.