The Proof Research Barrel Blank is a carbon fiber-wrapped .308-caliber (bore diameter) bolt-action barrel blank in the Sendero contour, supplied unchambered for a gunsmith to fit and chamber to your cartridge of choice (Proof Research part no. 107881).

Key Specifications

• .308-caliber bore diameter, unchambered blank
• 24-inch barrel length
• 1-in-8 rate of twist
• Sendero contour
• 2.5-inch barrel breech, 1.20-inch shank diameter
• Carbon fiber-wrapped construction
• Weighs approximately 2 lb 14 oz

Frequently Asked Questions

Is this barrel already chambered? No, this is an unchambered blank sold by bore diameter; a gunsmith chambers and fits it to your specific cartridge and action.

What’s the twist rate on this blank? It has a 1-in-8 rate of twist.

What’s the barrel’s shank diameter? It’s 1.20 inches, with a 2.5-inch barrel breech dimension.

Buy the Proof Research Carbon Fiber Barrel Blank, .308 Caliber, 24-Inch Sendero

Order the Proof Research Carbon Fiber Barrel Blank, .308 Caliber, 24-Inch Sendero from a Lubbock, TX gun shop. Shop more Proof Research parts or browse the Rifle Barrels category at Schaefer Defense.