Hornady Cartridge Gauge, .338 ARC

The Hornady Cartridge Gauge for .338 ARC (Hornady part no. 380728) lets handloaders check finished cases and loaded ammunition for correct fit before they ever reach the chamber. Hornady built its cartridge gauges to confirm cases and loaded rounds meet SAAMI chamber specifications, catching an over-length case or a bullet seated too long before it becomes a range-day problem. It’s a quick, reliable check that belongs in every .338 ARC handloader’s routine.

Key Specifications

• Chambered specifically for .338 ARC.
• Checks both empty cases and loaded ammunition for correct SAAMI chamber fit.
• Finished in silver stainless steel for durability.
• Gauge capacity accommodates 2 cartridges at a time.
• Weighs approximately 0.23 lb.

Frequently Asked Questions

What does this gauge check? It checks that a .338 ARC case or loaded round fits correctly within SAAMI chamber specifications.

Can I check loaded ammunition, not just empty cases? Yes, this gauge is built to check both empty cases and fully loaded ammunition.

Buy the Hornady Cartridge Gauge, .338 ARC

Catch fit problems on the bench before they show up at the range. Shop more from Hornady in our reloading tools selection and order from our Lubbock, Texas gun shop for fast, direct shipping.