The Proof Research .375 caliber Sendero contour bolt, featuring a 22-inch barrel with a 12 twist rate and a breech length of 3, shank diameter of 1.25 inches, combines precision crafting with rugged field performance for serious rifle enthusiasts. This high-quality barrel balances weight at 2 pounds 16 ounces to deliver steady handling, outstanding stiffness, and consistent muzzle velocity, making it ideal for long-range shooting and demanding hunting applications. The Sendero contour is engineered for stability and accuracy, enhancing thermal management and tracking across variable conditions while preserving accuracy shot after shot. Built to integrate seamlessly with compatible receivers, this barrel supports reliable performance in rifle builds that demand tight groupings and repeatable results. Whether you're pushing distances beyond typical field limits or outfitting a dedicated long-range setup, the Proof Research bolt assembly delivers enhanced rigidity and velocity consistency that shooters rely on for precision. With its meticulous manufacturing and proven reputation, this barrel represents a sophisticated upgrade for discerning hunters and precision shooters seeking to optimize ballistic efficiency and shot-to-shot repeatability.