Lyman 7705000 Pro Maximum Cartridge Gauge 9mm Luger Case Checker

The Lyman 7705000 Pro Maximum Cartridge Gauge delivers precise case length and headspace verification for 9mm Luger ammunition. This machined steel gauge eliminates guesswork in cartridge inspection, ensuring consistent chambering and optimal performance across different firearms.

What Makes This Different

Unlike basic go/no-go gauges, the Pro Maximum design incorporates both minimum and maximum chamber dimensions in a single tool. The precision-machined construction maintains tolerances within 0.0005 inches, providing more accurate readings than stamped alternatives. This dual-function capability reduces bench clutter while delivering professional-grade measurement accuracy.

Key Features

• Machined steel construction with hardened surfaces for long-term accuracy
• Tests both case length and headspace dimensions simultaneously
• SAAMI specification compliance for 9mm Luger cartridges
• Knurled grip surface prevents slipping during use
• Compact 3.5-inch length fits standard reloading bench storage
• Works with factory ammunition and handloads
• Lifetime calibration stability under normal use conditions

Reloaders benefit from consistent case preparation when processing mixed brass from different manufacturers. The gauge quickly identifies cases requiring trimming or those exceeding maximum length specifications. Competition shooters rely on this tool to verify ammunition consistency before matches, while hunters use it to check stored ammunition after extended periods.

Technical Specs

• Caliber: 9mm Luger (9x19mm Parabellum)
• Material: Heat-treated alloy steel
• Overall Length: 3.5 inches
• Weight: 2.1 ounces
• Tolerance: ±0.0005 inches
• Finish: Matte black oxide coating
• Manufacturer: Lyman Products Corporation
• Country of Origin: United States

This gauge represents essential quality control equipment for serious reloaders and competitive shooters. The investment in precise measurement tools pays dividends through improved ammunition consistency and reduced chambering issues. Professional gunsmiths stock this gauge for customer ammunition verification services.