The Proof Research 104569 Carbon Fiber Bolt-Action Barrel, .243, 20" Sendero Contour is a lightweight, match-grade barrel blank built for shooters who demand precision without excess weight. Using a full-profile 416R stainless steel core wrapped in aerospace-grade carbon fiber, this barrel is engineered to deliver consistent harmonics, excellent rigidity, and improved heat management shot after shot.

This .243 caliber, 20-inch Sendero contour barrel with a fast 1:7.5" twist rate arrives ready for your gunsmith to thread and chamber to your preferred cartridge. Its reduced weight and balanced profile make it ideal for precision range work, hunting, and dedicated training rifles where stability and repeatable accuracy matter. Backed by Proof Research’s reputation for meticulous craftsmanship and advanced composite barrel technology, it is a premium foundation for a custom bolt-action build.

• Manufacturer: Proof Research
• Model: 104569 Carbon Fiber Bolt-Action Barrel Blank, .243, 20" Sendero Contour
• Caliber: .243
• Barrel Length: 20"
• Barrel Twist Rate: 1:7.5"
• Barrel Contour: Sendero
• Barrel Bore Diameter: .243