For those seeking a tailored shooting experience, the PROOF RESEARCH 20 inches bolt-action barrel offers unparalleled precision and customization. Crafted from high-quality forged steel, these rifle barrels are designed to meet the specific needs of discerning marksmen. Available in a range of calibers, the PROOF RESEARCH 20 inches Button Rifle barrel ensures optimal accuracy with any action, making it a versatile choice for shooters aiming for excellence. To further personalize your firearm, explore the extensive selection of PROOF RESEARCH Rifle barrels, Breech Extensions and components. As you embark on building your custom rifle, the PROOF RESEARCH .308 Cal bolt-action barrel Blank provides the ideal foundation, setting the stage for a project that promises superior performance and reliability. Up to 64% lighter compared to traditional steel barrels with a similar contour Enhanced thermal resistance - optimized heat dissipation for cooler and more durable barrels The product exhibits exceptional durability, being encased in high-strength, aerospace-grade carbon fiber that is infused with a proprietary matrix resin Barrel twist rate - 1:8 Shank diameter - 1.20 inches Breech length - 2.5 inches