The Proof Research .264 28-inch Medium Sporter Stainless Bolt Action Barrel (brand part no. 101100) pairs a lighter, hunting-friendly Medium Sporter contour with the full 28-inch length long-range 6.5mm shooters want for maximum velocity. Machined from double-stress-relieved 416R stainless steel, the barrel delivers the match-grade accuracy and unprecedented durability Proof Research barrels are known for, without the added weight of a heavier tactical contour. A 1:8 twist rate stabilizes the longer, heavier 6.5mm bullets favored for extended-range hunting and precision shooting alike. It’s a strong option for a mountain rifle or long-range hunting build where barrel weight matters as much as accuracy.

Key Specifications

• Chambered in .264 caliber (6.5mm).
• Barrel length measures a full 28 inches.
• Cut with a 1:8 twist rate to stabilize longer, heavier 6.5mm bullets.
• Machined in the Medium Sporter contour for a lighter carry weight.
• Constructed from double-stress-relieved 416R stainless steel.
• Delivers match-grade accuracy and long-term durability.

Frequently Asked Questions

What caliber is this barrel chambered for? .264 caliber (6.5mm).

What is a Medium Sporter contour? A lighter-weight barrel profile suited to hunting rifles where carry weight matters alongside accuracy.

Buy the Proof Research .264 28-inch Medium Sporter Stainless Bolt Action Barrel

Build a lightweight long-range rifle around a barrel from Proof Research, part of our rifle barrels lineup. Order it from our Lubbock, Texas gun shop as soon as it’s available to ship.