The Proof Research .224 Carbon Fiber Barrel Blank in Sendero contour (Proof Research part no. 103340) is a 16.5-inch, 1:8-twist bolt-action barrel blank built for gunsmiths and builders fitting a custom .224-caliber precision rifle. Proof Research’s carbon-fiber-wrapped construction keeps the finished barrel light without giving up the rigidity of the Sendero contour, and at 2 lbs 8 oz it’s a fraction of the weight of a comparable steel blank in the same contour. With a 2.5-inch breech and 1.20-inch shank diameter, it’s ready for a gunsmith to chamber and fit to your action of choice.

Key Specifications

• Bored for .224 caliber.
• A 16.5-inch barrel length.
• A 1:8 twist rate.
• A 2.5-inch barrel breech diameter.
• A 1.20-inch shank diameter.
• Cut in Proof Research’s Sendero contour.
• Weighs 2 lbs 8 oz, light for a .224-caliber barrel blank.

Frequently Asked Questions

What caliber and twist rate is this barrel blank? It’s a .224-caliber barrel blank with a 1:8 twist rate.

What length and contour is it? It’s 16.5 inches long in Proof Research’s Sendero contour, with a 2.5-inch breech and 1.20-inch shank diameter.

How much does it weigh? It weighs 2 lbs 8 oz.

Buy the Proof Research .224 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.