Proof Research Kelbly's Atlas Carbon Fiber Prefit Barrel 6.5 Creedmoor 22" Sendero Contour 1:8" Twist 5 Groove

Overview

The Proof Research Kelbly's Atlas prefit barrel is chambered in 6.5 Creedmoor with a 22-inch Sendero contour and a 1:8-inch twist rate. These barrels are produced in-house from double-stress relieved 416R stainless steel, featuring 5-groove cut rifling. Each unit is drilled, contoured, reamed, and lapped, then inspected via borescope for consistency. The barrel utilizes aerospace-grade carbon fiber wrapped in a helical pattern, which is engineered to improve longitudinal thermal diffusivity and dissipate heat more efficiently than steel alone. This design helps the barrel maintain accuracy over extended firing sessions while providing match-grade performance and high durability.

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