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THE PRIZE
Carbon Fiber Wrapped Rifle Barrel Of Winner's Choice ($900 Gift Certificate).
1 Winner
Prize Donor:
At PROOF Research we’re proving carbon fiber-wrapped barrels aren’t just a lightweight alternative to traditional steel barrels, but that they provide superior performance, including extreme accuracy, unprecedented durability and increased barrel life. By combining our unique manufacturing process with advanced technology composite materials and thermo-mechanical design principles, we’ve accomplished what others have failed to do in the past—match-grade carbon fiber barrels that weigh a fraction of traditional steel barrels while compromising nothing. They’re not just lighter—they’re better.
Our patented manufacturing process begins with full-profile, match-grade 416R stainless steel barrel blanks that are made in our firearms division. These blanks are then turned down to a significantly reduced profile greatly reducing weight. This reduced contour barrel is then filament-wrapped with high-strength, aerospace-grade carbon fibers impregnated with a high-thermal conductivity matrix resin developed by our aerospace materials division.
The aerospace-grade carbon fiber we use is 10 times stronger than stainless steel and has a specific stiffness nearly 6 times greater than steel. But strength and stiffness are only part of the equation. Heat conductivity and thermal expansion are also of paramount importance when developing a match-grade, carbon fiber barrel. Our helical wrapping pattern favors the longitudinal thermal diffusivity of the carbon fibers (along the length of the barrel) allowing them to dissipate the heat emanating from the steel liner rather than insulate it. This is achieved through phonon transport in the direction of the continuous fibers and greatly reduces the mirage effect intrinsic in heavy steel barrels.
THE ONLY CARBON FIBER-WRAPPED BARREL APPROVED FOR USE BY THE U.S. MILITARY.
However, because our unique bonding agent contains a high-thermal pitch fiber—similar to those proven in Formula One and aerospace applications—our barrels also conduct heat very effectively through the wall (thickness) of the barrel, greatly increasing thermal conductivity and resulting in barrels that stay cooler and maintain accuracy over longer sessions of fire.
After wrapping, our barrels are cured and consolidated then ground to their final contour. The end result is an aerospace-grade, high-fiber volume fraction composite barrel with less than 1% porosity suitable for the most extreme environments and capable of shot-after-shot accuracy that will impress the most veteran hunter or precision marksmen.
PROOF Research’s match-grade carbon fiber barrels are stronger, lighter, as accurate as the finest precision steel barrels and will maintain their performance in the harshest conditions. We didn’t invent carbon fiber-wrapped barrels. We just perfected them.
Up to 64% lighter than traditional steel barrels
Match-grade accuracy
Improved heat dissipation for cooler and longer lasting barrels
No point-of-impact shift during high-volume fire
Reduced harmonic barrel vibration
Unprecedented durability
Our barrels are available for both bolt-action and AR-style rifles, in a variety of calibers, lengths and twists. Your bolt-action barrel will arrive ready for thread and chamber by your gunsmith. Your AR barrel will arrive threaded and chambered. Matched bolts are available as an option for AR-10® variants.
Questions? Ready to place an order? Call our sales team during normal business hours at: (406) 756-9290 or email us at info@proofresearch.com
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