BSF Barrels SF3IYT1190 Bolt-Action 257 Weatherby 18" 1:7.5 Carbon Fiber Barrel

The BSF Barrels SF3IYT1190 is a precision bolt-action rifle barrel chambered in 257 Weatherby, built around BSF's signature carbon fiber-wrapped barrel construction. At 18" in length with a 1:7.5 twist rate, this drop-in replacement barrel is engineered to deliver lightweight, accurate performance for hunters and precision shooters running a bolt-action rifle platform.

The barrel features a button-rifled stainless steel bore wrapped in carbon fiber over a 6061-T6 aluminum sleeve finished in black anodized. This two-piece carbon fiber and aluminum jacket gives the barrel the stiffness and heat-venting characteristics of carbon fiber while keeping overall weight down compared to a traditional all-steel barrel. The carbon fiber wrap and drilled venting help prevent delamination and point-of-aim shift during extended strings of fire.

The muzzle is threaded 5/8x24 for compatibility with standard muzzle devices and muzzle brakes. Intended as a replacement or upgrade barrel for bolt-action rifle platforms, the SF3IYT1190 brings BSF's lightweight carbon fiber technology to the 257 Weatherby chambering.