The Proof Research 6.5 CM Sendero profile bolt action barrel, engineered for precision and reliability, delivers unmatched performance for serious hunters and long-range shooters alike, featuring a TL3/SR3 Short action compatibility, a 20-inch barrel length for a balanced blend of speed and handling, and an 8 twist that stabilizes long bullets with consistency; the 5/8-24 muzzle thread provides versatile attachment options, while the lightweight 2lbs-11oz construction reduces overall weight without sacrificing rigidity, making it an ideal choice for rifle builds or upgrades where performance matters. This barrels Sendero contour is optimized for steady tracking and reduced harmonics, contributing to tight grouping and repeatable results in varied field conditions, from midsize game to high-precision tactical scenarios. Crafted by Proof Research, it pairs seamlessly with high-grade components to maximize accuracy, ballistics, and speed, empowering shooters to engage targets with confidence from field positions or long-range benches. With this barrel, you gain a dependable platform built to withstand rigorous use, delivering consistent performance and repeatable street-to-field performance in demanding environments.