The Proof Research Carbon Fiber Sendero Barrel Blank (brand part number 106464) is a 22-inch .284 Winchester barrel blank in the standard Sendero contour, sold unchambered for a gunsmith to fit, chamber, and crown to a customer’s specific action. Wrapped in aerospace-grade carbon fiber over a steel core by Proof Research, this blank carries a 1:8.4 twist rate and a 2.5-inch breech length over a 1.20-inch shank diameter, weighing approximately 2 pounds, 15 ounces before final chambering.

Key Specifications

• Chambered for .284 Winchester cartridges at the customer’s chosen specification.
• Barrel length is 22 inches.
• Twist rate is 1:8.4.
• Breech length is 2.5 inches over a 1.20-inch shank diameter.
• Contour is Sendero, the standard (not Light) profile.
• Sold as a barrel blank for gunsmith chambering and fitting.
• Weighs approximately 2 pounds, 15 ounces unchambered.

Frequently Asked Questions

How does this differ from the Sendero Light version at the same length? This is the standard Sendero contour, slightly heavier and stiffer than the Sendero Light profile at the same barrel length.

Is this barrel ready to install out of the box? No, this is an unchambered blank; a gunsmith must chamber, thread, and fit it to your specific action.

Buy the Proof Research .284 Winchester Sendero Blank

Give your gunsmith a premium carbon-fiber blank for your next custom build. Order this rifle barrel from our Lubbock, Texas gun shop for fast, insured shipping to your door.