Unlock the full potential of your rifle with our meticulously designed bolt-action barrel blanks. These barrels offer unparalleled versatility, allowing you to chamber your preferred caliber and integrate seamlessly with a wide array of actions. Available in a comprehensive range of calibers, lengths, contours and twist rates, they cater to the diverse needs of shooting enthusiasts and professionals. Each barrel is delivered ready for threading and chambering by your trusted gunsmith, ensuring a custom-fit for your specific requirements. This flexibility is particularly beneficial for those working with wildcat cartridges, which often lack standardized chamber specifications, cartridge designs or pressure limits. PROOF RESEARCH's barrels are rigorously designed to operate safely with most known cartridges, adhering to both SAAMI and CIP pressure standards. Whether you're building a precision rifle or experimenting with unique cartridge configurations, our bolt-action barrels provide a reliable foundation for your project. 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 1:9.4 barrel twist rate Shank diameter - 1.25 inches Breech length - 3 inches