The Proof Research .224 Sendero barrel blank delivers precision-grade performance for demanding rifles, combining a 16.5-inch barrel length with an 8-twist rate to stabilize a wide range of projectiles and maintain excellent velocity at extended distances. Built by Proof Research, this carbon-fiber wrapped barrel features a 2.5-inch breech and a 1.20-inch shank diameter, all in a Sendero contour that optimizes balance, rigidity, and heat dissipation for sustained accuracy during long-range shooting or field competitions. Weighing 2 pounds 8 ounces, its lightweight profile reduces fatigue without compromising stiffness, enabling rapid target acquisition and consistent shot-to-shot performance. Calibrated for the .224 caliber, this barrel blank is ideal for precision builds where repeatable external dimensions and a clean, crisp bore finish are essential, supporting tight groupings and reliable velocity retention across multiple loads. Whether youre outfitting a dedicated predator rifle, a long-range rifle build, or a high-performance sporting rig, the Proof Research option provides a trusted foundation for accurate, repeatable shooting with a proven Sendero contour that blends rugged durability with refined ballistic efficiency.