Evolution Gun Works Ammo Chamber Checker .308 7-Hole - 70165

Ensure your .308 Winchester and 7.62×51 NATO reloads meet exacting standards with the Evolution Gun Works Ammo Chamber Checker .308 7-Hole. This precision case gauge allows reloaders to quickly verify critical dimensions on up to seven cartridges simultaneously, helping prevent feeding issues, excessive headspace, and potential safety concerns before they reach the range or field.

Key Features

• Machined from solid 6061 T6 aircraft-grade aluminum for exceptional durability and long-term reliability under frequent use.
• Precisely cut using actual Clymer reamers—the same tools employed to chamber rifle barrels—ensuring true SAAMI minimum specifications rather than approximations from boring bars.
• Anodized matte black finish resists wear, corrosion, and scratches while maintaining a professional appearance.
• Simultaneously measures minimum case diameter and maximum overall length (OAL) across seven chambers.
• Compatible with both .308 Winchester and 7.62×51 NATO ammunition.

Specifications

• Material: 6061 T6 aluminum
• Finish: Matte black anodized
• Capacity: 7 holes
• Dimensions: 3″ L x 1.25″ W x 2.81″ H
• Weight: 12.8 oz
• Manufactured to SAAMI minimum specs

Why Reloaders Choose This Chamber Checker

Manually inspecting every round is time-consuming and prone to error. The EGW 7-hole design streamlines quality control, letting you batch-check multiple cartridges in seconds. By confirming proper case diameter and OAL, you reduce the risk of chambering problems, improve feeding reliability in semi-automatic and bolt-action rifles, and gain confidence that your handloads are safe and consistent. Its compact size fits easily in a range bag or reloading bench, making it an essential tool for serious .308 reloaders.

Invest in precision reloading equipment that delivers repeatable results. The Evolution Gun Works Ammo Chamber Checker .308 7-Hole helps elevate your ammunition quality and peace of mind with every session.