Proof Research Steel Bolt Blank .338 Winchester Magnum Non-Threaded Rifle Barrel 20 inch 1-8 Twist Silver

Proof Research Steel Bolt Blank .338 Winchester Magnum Non-Threaded Rifle Barrel 20 inch 1-8 Twist Silver. The drilling rifling and lapping process is identical to our composite barrels. Proof Research starts with the same steel as they use in the carbon fiber barrels. It is a double stress-relieved 416R stainless steel a pre-hardened chromium stainless steel that was specifically designed by engineers in collaboration with rifle barrel makers to provide the consistent high quality and durability the firearms industry demands. Specifications for Proof Research Steel Bolt Blank .338 Winchester Magnum Non-Threaded Rifle Barrel: Manufacturer: Proof Research Color: Silver Finish: Stainless Steel Caliber: .338 Winchester Magnum Projectile Caliber: .338 Caliber Barrel Length: 20 in Barrel Profile: Heavy Palma Barrel Twist Rate: 1-8 Barrel Material: Carbon Fiber Flutes: No Barrel Shank Diameter: 1.25 in Barrel Breech Length: 2.5 in Gun Type: Rifle Weight: 7.1 lb Application: Shooting Features of Proof Research Steel Bolt Blank .338 Winchester Magnum Non-Threaded Rifle Barrel Lightweight - Up to 64percent lighter than traditional steel barrels of similar contour Extreme Temperature Resistance - Improved heat dissipation for cooler and longer lasting barrels Unprecedented Durability - Wrapped with high-strength aerospace-grade carbon fiber impregnated with a proprietary matrix resin Long-Lasting - Excellent erosion wear characteristics and corrosion resistance Extreme Pressure Resistance - An optimum combination of high tensile strength along with requisite toughness to withstand extreme chamber pressures encountered during firing Package Contents: Proof Research Steel Bolt Blank .338 Winchester Magnum Non-Threaded Rifle Barrel Proof Research 145418: Steel Bolt Blank .338 Winchester Magnum Non-Threaded Rifle Barrel 20 inch 1-8 Twist Silver 145418