Restrictions

Top takeaways

  1. PROOF Research barrels are crafted from double stress-relieved 416R stainless steel, chosen for its excellent machinability and uniformity essential for precision shooting.
  2. The barrels undergo a meticulous manufacturing process including drilling, contouring, and hand lapping, ensuring high tensile strength and toughness to withstand firing pressures.
  3. Each barrel is 28 inches long with a 1-8 twist rate, specifically designed for 264 caliber cartridges, and is inspected with a bore scope for quality assurance.

Attributes

Barrel Weight: 3.11 lbs Cartridge: 264 Caliber Contour: Medium Sporter Finish: Stainless Steel Length: 28'' Twist: 1-8 Delivery weight: 2.087kg

Item details

Made in USA
US export classification: 0A501.c