Proof Research Carbon Fiber Barrel Blank 264 Caliber, 6.5mm 26" Sendero Contour 1:7.5" Twist

Overview

The Proof Research Carbon Fiber Barrel Blank in 6.5mm (.264 caliber) features a 26-inch length, a 1:7.5" twist rate, a Sendero contour, a 2.5-inch breech length, and a 1.20-inch shank diameter, with a weight of 3 lbs 5 oz. Built for bolt-action rifles, it arrives ready for threading and chambering by a gunsmith. Constructed in-house from double-stress relieved 416R stainless steel, the barrel is cut-rifled, lapped, and borescope-inspected. It incorporates an aerospace-grade carbon fiber helical wrapping pattern designed to optimize longitudinal thermal diffusivity and radial heat transport, enabling the barrel to cool rapidly and sustain match-grade accuracy and durability.

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