The Proof Research 338 Caliber 9.4 Twist 28" Carbon Fiber Sendero Barrel is engineered for shooters who demand consistent precision from a lightweight, premium replacement barrel. Built on a carbon fiber–wrapped steel core, this Sendero contour barrel is designed to deliver excellent rigidity and heat management while trimming weight compared to traditional steel barrels.

This bolt-action barrel configuration is ideal for long-range hunting and extended range sessions where accuracy and manageable carry weight matter. The 9.4 twist rate is tailored for modern .338 projectiles, supporting stable flight and dependable performance downrange. Whether you are refining a custom rifle build or upgrading an existing platform, this barrel reflects Proof Research’s focus on innovation, accuracy, and meticulous craftsmanship.

• Manufacturer: Proof Research
• Model: 338 Caliber 9.4 Twist 28" Carbon Fiber Sendero Barrel
• Caliber: 338
• Barrel Length: 28"
• Action: Bolt-Action Compatible Barrel
• Unique Features: Carbon Fiber Wrapped Sendero Contour