PROOF Research Bighorn CF Bolt Blank 6mm Creedmoor 24" 1:7.5 Twist Rate

The PROOF Research Bighorn CF bolt blank in 6mm Creedmoor gives long-range hunters and precision shooters the foundation for a purpose-built rifle. This 24-inch barrel comes threaded and ready to install on your custom action, with a 1:7.5 twist rate that stabilizes the full range of modern 6mm Creedmoor loads—from lighter target rounds to heavy hunting bullets. The Sendero contour balances stiffness and handling weight, and at just over 3 pounds, it won't bloat your final rifle weight when you're glassing ridgelines all day.

PROOF's carbon fiber construction keeps this barrel genuinely light without sacrificing the rigidity that matters for accuracy. The 5/8-24 muzzle thread accepts suppressors, brakes, or other accessories common in the precision rifle world. Whether you're building a long-range hunting rifle, a competition gun, or a varmint rig, a quality barrel blank is where accuracy lives or dies—and PROOF has earned its reputation in that space.

This is a blank, not a complete rifle. You'll need to fit it to a compatible bolt action receiver and headspace it properly. If you're commissioning a gunsmith or have the tools and knowledge to do the work yourself, you're getting a proven component from a maker that understands what precision shooters demand.

Key Features

• 6mm Creedmoor caliber—modern, efficient, and flat-shooting for hunting and range work
• 1:7.5 twist rate handles the full spectrum of 6mm bullets and velocities
• 24-inch barrel length balances velocity and portability
• Sendero contour provides rigidity and moderate weight for field use
• 5/8-24 muzzle thread for suppressors, brakes, and other accessories
• Carbon fiber construction keeps weight down without sacrificing stiffness

Specifications

Frequently Asked Questions

Will this barrel fit my action?

This is a barrel blank—you'll need to verify it's compatible with your bolt action receiver. Work with a gunsmith or confirm chamber and mounting dimensions before ordering if you're unsure.

Do I need to headspace this barrel?

Yes. A barrel blank requires proper headspacing to your action. If you don't have the tools and experience to do this safely, have a qualified gunsmith handle it.

What twist rate do I need for 6mm Creedmoor?

The 1:7.5 twist on this barrel will stabilize bullets across the common 6mm Creedmoor weight range, from lighter target loads to heavier hunting rounds. It's a solid all-purpose twist for the cartridge.

Can I put a suppressor or muzzle brake on this barrel?

Yes. The 5/8-24 muzzle thread accepts standard suppressors, flash hiders, muzzle brakes, and other threaded accessories designed for that pitch.