Proof Research PXT Carbon Fiber Barrel Blank 308 Caliber 18" Sendero Contour 1:10" Twist 5 Groove

Overview

The Proof Research PXT carbon fiber barrel blank is an 18-inch .308 caliber barrel featuring a Sendero contour and a 1:10-inch twist rate. Utilizing PXT (Proof Exponential Twist) technology, the barrel employs a refined rifling geometry and twist progression designed to reduce engraving force and minimize throat erosion. This advancement creates a smoother transition as the projectile engages the rifling, which improves consistency, reduces felt torque, and extends barrel life by 30-100% compared to traditional rifling. The barrel blank is constructed with aerospace-grade carbon fiber impregnated with a proprietary matrix resin, providing an exceptional stiffness-to-weight ratio. This design significantly reduces overall rifle weight without compromising accuracy, making it an ideal foundation for custom long-range precision systems and lightweight hunting rifles.

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