The BSF SF3IYT0677 Bolt-Action 6mm/243 22" 1-7.5 barrel is built around a stainless steel core wrapped in a carbon fiber sleeve, giving shooters a rigid, lightweight option for precision bolt guns. Its 22-inch threaded barrel length and button-rifled bore are engineered to deliver consistent accuracy while shedding weight compared to traditional all-steel profiles.

This model’s 5/8"x24 threaded muzzle makes it ready for brakes or suppressors, and the fast 1:7.5 twist rate is ideal for stabilizing modern high-BC 6mm projectiles. Suited for precision target shooting, long-range work, and varmint or predator hunting, this barrel offers a refined upgrade path for shooters who want match-grade performance with reduced weight. BSF Barrels is known for combining innovative carbon fiber construction with careful machining to enhance consistency and reliability.

Key Features:

• Manufacturer: Bsf Barrels
• Model: SF3IYT0677
• Caliber/Gauge: 6mm Rem
• Action: Bolt
• Barrel Description: Button Rifled
• Barrel Finish: Carbon Fiber
• Barrel Length: 22 inches
• Barrel Material: Stainless Steel
• Thread Pattern: 5/8"x24
• Twist: 1:7.5 inches
• Weight: 41.10 oz