The Proof Research 100905 Bolt Action Barrel Blank for 264 Caliber features a 22" Sendero contour with a 1:8" twist and four grooves, delivering precise ergonomics and consistent velocity for demanding long-range applications. Crafted with a carbon fiber wrapped finish, this barrel blank combines stiffness, reduced weight, and enhanced thermal stability to help shooters maintain accuracy across extended shooting sessions. Built as a bolt action compatible blank, it is designed to be shaped and chambered to fit specific rifles while preserving the high tolerance standards Proof Research is known for, ensuring a reliable platform for precision builds. The rifled bore provides clean, accurate rifling engagement, and the eye-catching carbon fiber exterior not only looks professional but also contributes to overall balance and heat management. Ideal for hunters and long-range enthusiasts seeking to upgrade or customize a bolt action rifle, this barrel blank enables a tailored fit to individual chassis or action parameters without sacrificing performance. With its Sendero contour and carbon fiber wrap, it supports precise load development and repeatable shot placement, making it a compelling choice for serious shooters pursuing consistent, top-tier results.