Proof Research Kelbly's Atlas Carbon Fiber Prefit Barrel 6.5 Creedmoor 24" Sendero Contour 1:8" Twist 5 Groove

Overview

The Proof Research Kelbly's Atlas Carbon Fiber Prefit Barrel is chambered in 6.5 Creedmoor with a 24-inch length, Sendero contour, 1:8" twist, and 5-groove rifling. Built for match-grade accuracy and durability, the inner steel barrel is produced in-house from double-stress relieved 416R stainless steel that is drilled, contoured, reamed, cut-rifled, lapped, and borescope-inspected. The barrel is wrapped in aerospace-grade carbon fiber using a helical pattern that favors longitudinal thermal diffusivity, allowing heat to dissipate rapidly along the length of the barrel rather than insulating it. This engineering improves thermal performance, helping the barrel cool faster and maintain accuracy over extended strings of fire.

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