The Proof Research .284 Sendero Carbon Fiber Barrel Blank in 22-inch length (brand part no. 106471) is a bolt-action barrel blank wrapped in aerospace-grade carbon fiber. Proof ships its bolt-action blanks ready for your gunsmith to thread and chamber, so you choose the final chambering. The 1:8 twist and Sendero contour make it a solid foundation for a long-range hunting or precision rifle that you do not want to carry heavy. If you are building a .284 bore rifle that has to stay light and hold accuracy, this blank from Proof Research is a strong place to begin.

Key Specifications

• The bore is .284, the diameter this blank is made for.
• The barrel length is 22 inches, long enough for velocity yet still handy in the field.
• The rate of twist is 1:8, the rifling rate Proof lists for this blank.
• The contour is Sendero, the profile that sets the barrel’s outside shape and stiffness.
• The shank diameter is 1.20 inches, the dimension a gunsmith uses to fit the barrel to the action.
• The breech length is 2.5 inches, which sets how much material is available for threading the barrel into the receiver.
• Weight is 2 pounds 15 ounces, the listed weight for this 22-inch blank.
• The barrel is wrapped in aerospace-grade carbon fiber impregnated with a proprietary matrix resin for durability.
• The carbon fiber construction is up to 64% lighter than a traditional steel barrel of similar contour.
• It is a barrel blank, shipped for a gunsmith to thread and chamber, and Proof notes it can be finished to standard or custom wildcat chambers.

Frequently Asked Questions

Is this barrel chambered or threaded? No. Proof ships its bolt-action blanks ready for your gunsmith to thread and chamber, so it is not chambered or threaded.

Why choose carbon fiber over a steel barrel? Proof says a carbon fiber barrel is up to 64% lighter than a traditional steel barrel of similar contour, and it dissipates heat better for cooler, longer-lasting barrels.

What twist and contour does this blank have? It has a 1:8 twist and a Sendero contour, with a 1.20-inch shank and a 2.5-inch breech.

Buy the Proof Research .284 Sendero Carbon Fiber Barrel Blank, 22-Inch, 1:8 Twist

A blank is the one part of a custom rifle where weight, stiffness and quality all show up at the range. This Sendero profile gives you a barrel that Proof has wrapped in carbon fiber to keep the rifle light. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and see more rifle barrels while you are here.