Proof Research Barrel Blank 264 Caliber 22" Carbon Fiber Sendero Contour 1:7.5" Twist 1.13 Breech

Overview

The Proof Research Barrel Blank is a 22-inch, .264-caliber carbon fiber barrel blank featuring a Sendero contour and a 1:7.5" twist with a 1.13" breech. Produced in-house from double-stress relieved 416R stainless steel, each barrel is drilled, contoured, reamed, cut rifled, lapped, and borescope-inspected for match-grade accuracy and durability. The barrel is wrapped in aerospace-grade carbon fiber using a helical pattern that enhances thermal conductivity and longitudinal thermal diffusivity, allowing the barrel to dissipate heat efficiently, cool faster, and maintain consistent accuracy during extended strings of fire.

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