The Proof Research .284 Carbon Fiber Barrel Blank in Sendero contour (Proof Research part no. 106556) is a 26-inch, 1:8-twist bolt-action barrel blank built for long-range .284 Winchester precision rifles. It starts life as a full-profile, match-grade 416R stainless steel blank, turned down to a reduced contour and wrapped in aerospace-grade carbon fiber using Proof’s proprietary resin matrix, coming in at up to 64% lighter than a traditional steel barrel of the same contour. That weight savings doesn’t cost accuracy: the carbon wrap improves heat dissipation for a cooler-running barrel that holds its point of impact and resists harmonic vibration through long strings of fire, exactly what a competition or long-range hunting build demands.

Key Specifications

• Bored for .284 caliber.
• A 26-inch barrel length.
• A 1:8 rate of twist.
• Cut in Proof Research’s Sendero contour.
• Up to 64% lighter than a traditional steel barrel of the same contour.
• Built to match-grade accuracy standards.
• Improved heat dissipation for a cooler-running, longer-lasting barrel.
• No point-of-impact shift during high-volume strings of fire.
• Reduced harmonic barrel vibration for more consistent shot-to-shot accuracy.
• Built around a full-profile, match-grade 416R stainless steel blank wrapped in aerospace-grade carbon fiber with Proof’s proprietary resin matrix.

Frequently Asked Questions

How much lighter is this than a steel barrel? Proof Research rates its carbon fiber barrels at up to 64% lighter than a traditional steel barrel of the same contour.

What’s inside the carbon fiber wrap? It starts as a full-profile, match-grade 416R stainless steel blank that’s turned down to a reduced-weight contour, then wrapped in aerospace-grade carbon fiber with Proof’s proprietary resin matrix.

Will it shift point of impact during rapid strings of fire? No. Proof Research built it to hold point of impact through high-volume strings of fire, with improved heat dissipation and reduced harmonic vibration.

Buy the Proof Research .284 Carbon Fiber Barrel Blank

Order this barrel blank from our Lubbock, Texas gun shop and we’ll have it ready to ship to your door. Shop the full Proof Research lineup or browse our complete rifle barrels selection.