Proof Research 264 Win Mag 24" Carbon Fiber Bolt Action Barrel Blank - 416R Stainless Steel, Sendero Light Contour

A Proof Research 264 Win Mag 24" carbon fiber bolt action barrel blank in Sendero Light contour gives you the foundation for a custom long-range rifle that actually weighs what you want to carry. Built around a 416R stainless steel core wrapped in carbon fiber, this barrel blank arrives ready for your gunsmith to thread and chamber to your exact specifications. If you're building a hunting rifle or precision rifle that needs to go the distance without the traditional heft, this is the material that makes it possible.

The engineering here is straightforward: carbon fiber wrapping reduces weight by up to 64 percent compared to a conventional steel barrel of the same contour, yet the material is dramatically stronger by weight and far more resistant to impact and weather damage than traditional steel. That matters whether you're glassing ridges in hard country or running through stage after stage at a match. The Sendero Light profile is designed for shooters who want a practical balance—stiff enough for precision work, light enough to manage in the field.

Proof Research barrels are known for maintaining match-grade accuracy while managing heat better than steel alone. The carbon fiber construction helps dissipate temperature, which means your point of impact stays consistent through high-volume strings and reduces the harmonic vibration that can walk shots. A 264 Win Mag is a serious tool for long-range hunting and competition, and pairing it with a lightweight, rigid barrel means more of your energy goes into the bullet and less into recoil or muzzle rise you have to manage.

This is a blank—no threading, no chambering, no muzzle work. Plan to send it to a qualified gunsmith who can finish it for your action and desired chamber. That also means you have complete flexibility to specify headspace, bore diameter, and muzzle profile to match your build intent.

Key Features

• 416R stainless steel core wrapped in carbon fiber for weight savings and durability
• Up to 64% lighter than comparable steel barrels
• Sendero Light contour—balanced profile for hunting and precision shooting
• Improved heat dissipation for cooler operation and consistent accuracy during high-volume fire
• Resistant to dings, scratches, and weather damage
• Reduced harmonic vibration for better shot-to-shot consistency
• 24" length suitable for long-range work in 264 Win Mag

Specifications

Frequently Asked Questions

What work does my gunsmith need to do on this barrel blank?

This barrel blank arrives ready for your gunsmith to handle threading, chambering, and any muzzle work. You'll work with your smith to specify headspace, bore diameter, and any custom muzzle configuration (brake threads, crown, etc.) to match your action and build intent.

Is a carbon fiber barrel really stronger than steel?

Carbon fiber is approximately 10 times stronger than steel by weight, which is why Proof Research can achieve such significant weight savings without sacrificing stiffness or accuracy. The material is also more resistant to corrosion, impact, and scratching than traditional steel.

Will point of impact shift when I fire high round counts?

No. Proof Research carbon fiber barrels are designed to maintain consistent accuracy during high-volume fire thanks to improved heat dissipation and reduced harmonic vibration. Your zero should remain stable even through extended shooting sessions.

What makes the Sendero Light contour a good choice?

The Sendero Light profile balances stiffness for precision and accuracy with a practical weight. It's well-suited to hunters who want a long-range capable rifle without excessive barrel weight, and it works for competition shooting where you need rigidity without carrying extra pounds.