Proof Research Stainless Steel Barrel Blank .257 Cal 28" 1:7.5 Twist 5 Groove Competition

Proof Research Stainless Steel Barrel Blank .257 Cal 28" 1:7.5 Twist 5 Groove Competition

The Proof Research Stainless Steel Barrel Blank is a match-grade bolt-action barrel blank chambered in .257 caliber and engineered for precision competition and custom rifle applications. This configuration features a 28-inch length with a fast 1:7.5 twist rate optimized for stabilizing modern high-BC .25 caliber projectiles commonly used in long-range competition and precision shooting disciplines. Precision 5-groove rifling is designed to improve bore consistency, reduce fouling accumulation, and deliver repeatable accuracy across extended shot strings and demanding firing schedules. The Competition contour enhances barrel rigidity and minimizes harmonic variation for exceptional shot-to-shot consistency.

Manufactured from match-grade stainless steel, the barrel is engineered for superior durability, thermal stability, and precision under high round-count use. The 1.25-inch breech diameter provides additional stiffness and strength, making it ideal for custom competition rifle builds where consistency and accuracy are paramount. As a barrel blank, this configuration is supplied unchambered and unthreaded, allowing a gunsmith to customize chamber dimensions, muzzle threading, and final fitment to exact specifications. Designed for PRS, F-Class, and long-range precision applications, this barrel delivers the performance and craftsmanship expected from Proof Research.

A signature is required upon delivery for this product. Please make sure someone 21 or older is available to sign when the package arrives. For more information, give us a call at 817.928.5245