This Proof Research carbon fiber Sendero barrel blank in .224 caliber is an 18-inch, 1:8 twist blank for custom bolt-action rifles (Proof Research part no. 103395). It is sold as a blank, so your gunsmith threads and chambers it to suit the build. The barrel is wrapped in aerospace-grade carbon fiber, which keeps the weight well below a steel barrel of similar contour. Eighteen inches makes a short, quick-handling .224 rifle, and Proof Research supplies the blank for builders who want that without the weight.

Key Specifications

• The caliber is .224, supplied as an unchambered blank for your gunsmith to chamber.
• Barrel length is 18 inches, which keeps the finished rifle short and quick to handle.
• The twist rate is 1:8, the rate of one turn in eight inches that spins the bullet.
• The contour is Sendero, the profile Proof pairs with this carbon fiber blank.
• Weight is 2 lb 10 oz, light for an 18-inch barrel because of the carbon fiber wrap.
• Breech length is 2.5 inches and shank diameter is 1.20 inches, the dimensions your gunsmith needs to fit it to the action.
• Construction is aerospace-grade carbon fiber in a proprietary matrix resin, which Proof rates up to 64% lighter than a steel barrel of similar contour.

Frequently Asked Questions

What twist rate does this .224 blank have? It has a 1:8 twist, 18 inches of length and a Sendero contour.

Is the barrel chambered? No. It is a blank that ships ready for your gunsmith to thread and chamber.

Why choose carbon fiber over steel? Proof says the carbon fiber wrap makes the barrel up to 64% lighter than a steel barrel of similar contour and improves heat dissipation.

Buy the Proof Research Carbon Fiber Sendero Barrel Blank, .224 Caliber, 18-Inch, 1:8 Twist

Pair this blank with a gunsmith you trust and you have the start of a light, fast .224 rifle. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and see more rifle barrels in our catalog.