The Proof Research Carbon Fiber Barrel delivers exceptional accuracy and weight savings for precision rifle builds chambered in 7mm PRC with a 22-inch length and 1:8 twist rate.Proof Research Carbon Fiber Barrel - 7mm PRC22-inch barrel length with Sendero contour profile1:8 twist rate optimized for heavy bullets5/8-24 threaded muzzle for suppressor/brake compatibilityZermatt Arms pre-fit configurationCarbon fiber construction for reduced weightIdeal for long-range precision shooting and hunting applications where accuracy and weight reduction are critical. The carbon fiber construction provides excellent heat dissipation while maintaining rigidity for consistent shot placement.