The Proof Research Carbon Fiber Sendero Light Barrel Blank (brand part number 106228) is a 22-inch .284 Winchester barrel blank in the lightweight Sendero Light 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 twist rate and a 2.5-inch breech length over a 1.20-inch shank diameter, weighing approximately 2 pounds, 12 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.
• Breech length is 2.5 inches over a 1.20-inch shank diameter.
• Contour is Sendero Light, wrapped in carbon fiber over a steel core.
• Sold as a barrel blank for gunsmith chambering and fitting.
• Weighs approximately 2 pounds, 12 ounces unchambered.
• Up to 64% lighter than a traditional steel barrel of similar contour.
• Improves heat dissipation for cooler, more consistent strings of fire.

Frequently Asked Questions

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.

How does this differ from the other 22-inch .284 Sendero Light blank in this lineup? This version carries a 1:8 twist rate rather than 1:8.4, a small but meaningful difference for stabilizing specific bullet weights.

Buy the Proof Research .284 Winchester Sendero Light Blank

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