Proof Research Carbon Fiber PXT Barrel Blank Features The Proof Research Carbon Fiber PXT Barrel Blank uses Proof Research s proprietary carbon fiber wrapping process over a stainless steel liner a construction method that reduces weight dramatically compared to an all-steel barrel while improving heat dissipation during strings of fire. Built in .264 Caliber this 22 blank is suited for 6.5mm cartridge builds that rely on consistent accuracy at extended ranges. Its 1:7.5 twist rate is matched to stabilize the longer higher ballistic coefficient bullets favored in modern long-range 6.5mm shooting. The Stainless finish on the barrel s steel core provides corrosion resistance beneath the carbon fiber wrap. As a barrel blank this product is intended for a gunsmith or experienced builder to chamber and fit to a specific action giving custom rifle builders the freedom to configure the chambering and thread specifications to their exact project needs. Proof Research s carbon fiber barrels have built a strong reputation among precision rifle and long-range hunting shooters for combining accuracy with meaningful weight savings over traditional steel barrels. At just 2 lbs 13 oz this blank keeps a finished rifle build notably lighter than a comparable all-steel barrel setup which matters for hunters carrying their rifle over long distances. The Proof Research Carbon Fiber PXT Barrel Blank is available for sale at GrabAGun for builders who want proven carbon fiber barrel performance in their custom rifle project. Proof Research Carbon Fiber PXT Barrel Blank Specifications Manufacturer: Proof Research Model: Carbon Fiber PXT Barrel Blank Type: Barrel Blank Caliber: .264 Caliber Finish: Carbon Fiber Barrel Length: 22 Twist Rate: 1:7.5 Weight: 2 lbs 13 oz Available At: GrabAGun