The Proof Research Sendero Light .264 caliber carbon fiber barrel blank (brand part number 105320) is a 22-inch, unchambered rifle barrel meant for a gunsmith to fit and chamber to a specific bolt-action receiver. Like every Proof Research barrel, it is wrapped from aerospace-grade carbon fiber over a 416R stainless steel liner, cutting barrel weight by as much as 64 percent versus a comparable steel barrel, so a precision long-range or hunting build stays light in the hand without giving up rigidity. At just 2 pounds 13 ounces, this Sendero Light contour keeps overall rifle weight down for a mountain rifle or backcountry hunting build without sacrificing the accuracy a heavier target contour delivers. It ships as a blank, not a finished barrel, so the buyer controls chambering, thread specs, and finish length for the exact custom rifle in mind.

Key Specifications

• Barrel length measures 22 inches in the blank, giving a gunsmith room to thread and finish to the builder’s exact spec.
• Rate of twist is 1:8, a stabilizing rate suited to mid-to-heavy .264 caliber (6.5mm) bullets for long-range accuracy.
• Breech length is 2.5 inches, the dimension a gunsmith needs to properly chamber the blank to a bolt-action receiver.
• Shank diameter holds at 1.20 inches, matching standard bolt-action barrel shank tooling for a clean thread-in fit.
• Contour is Proof Research’s Sendero Light profile, a lighter-weight taper built for hunting rifles that still get carried a lot farther than they get shot.
• Finished weight comes in at approximately 2 pounds 13 ounces, keeping a custom mountain rifle build lean.
• Construction is Proof Research’s signature carbon-fiber-wrapped 416R stainless steel, shedding weight without sacrificing barrel rigidity.
• Weight savings run up to 64 percent lighter than a comparable steel barrel of the same contour and length.

Frequently Asked Questions

Does this barrel come chambered and ready to install? No. This is an unchambered blank sized for a gunsmith to chamber, thread, and fit to a specific bolt-action receiver and cartridge headspace.

What caliber is this blank intended for? It is bored for .264 caliber (6.5mm) cartridges with a 1:8 twist rate, suited to mid-to-heavy 6.5mm bullet weights.

Will this reduce my rifle’s overall weight? Yes. The carbon-fiber-wrapped construction and Sendero Light contour together cut several ounces to a pound or more versus a comparable steel barrel of the same length and caliber.

Buy the Proof Research Sendero Light .264 Barrel Blank

Order this Proof Research Sendero Light .264 carbon fiber barrel blank from a Lubbock, Texas gun shop and hand it to your gunsmith for a lighter, stiffer custom rifle build. Browse our full rifle barrels selection for more Proof Research profiles and calibers.