The Proof Research Carbon Fiber Bolt-Action Barrel Blank, .243, 26" Sendero Contour is engineered for shooters who want match-grade precision without the weight penalty of a traditional steel barrel. Built around a stainless steel core and wrapped in rigid carbon fiber, this 26-inch Sendero contour blank delivers excellent stiffness and heat management while keeping your rifle responsive and easy to carry.

This .243 caliber barrel blank features a 1:7.5 twist rate, 2.5-inch breech length, and 1.20-inch shank diameter, giving gunsmiths a proven foundation for custom long-range hunting or target rifles. The combination of a lightweight profile and stable carbon fiber construction makes it well suited for extended range sessions and demanding field use where consistency matters. Proof Research is widely respected for precise machining and advanced composite technology that raise the standard for modern rifle barrels.

• Manufacturer: Proof Research
• Model: Proof Bbl Cf Bolt .243 26 Sendero 1-7.5
• Caliber: .243
• Barrel Length: 26 inches
• Twist Rate: 1:7.5
• Breech Length: 2.5 inches
• Shank Diameter: 1.20 inches