The Proof Research 113691 Stainless Steel Bolt-Action Barrel Blank, .308, 28" M24 Contour is built for shooters who want a true match-grade foundation for a custom rifle. This heavy M24-profile blank uses a stainless steel construction and a 1:9 right-hand twist to stabilize a wide range of .308 projectiles, from lighter varmint bullets to long-range match loads. Supplied unchambered, it allows your gunsmith to cut the exact chamber and shoulder you need for a precision bolt-action build.

With its 28-inch length, 1.20-inch shank diameter, and substantial 6 lb 9 oz weight, this barrel blank offers excellent stiffness and heat resistance for consistent accuracy over extended strings of fire. It is well suited to precision range work, competition, and long-distance hunting setups where repeatable performance matters. Backed by Proof Research’s focus on accuracy-driven design and meticulous manufacturing, this blank is a strong starting point for a refined .308 rifle.

• Manufacturer: Proof Research
• Model: BBL SS Bolt Blank .308 28 M24 1-9
• Caliber: .308
• Barrel Length: 28 Inches
• Twist Rate: 1:9
• Contour: M24 Heavy
• Shank Diameter: 1.20 Inches