The Lyman Rifle Case Length & Headspace Gauge is a must-have tool for reloaders who prioritize safety, consistency, and accuracy. Designed to quickly verify critical case dimensions after resizing, this gauge helps ensure your brass stays within proper headspace and length tolerances.

Using the gauge is simple—just insert your resized case to confirm it does not exceed maximum headspace or fall below the minimum allowable dimension. It also identifies cases that are over maximum case length, helping you catch issues before they impact performance or safety.

Maintaining proper headspace is essential for reliable chambering and consistent ignition. This tool provides a fast, reliable way to check your brass and keep your reloading process dialed in.

Note: Any case found with excessive headspace should be discarded immediately.

Key Features

• Verifies proper headspace after resizing
• Checks for maximum and minimum allowable dimensions
• Identifies cases exceeding maximum case length
• Simple, fast drop-in design
• Essential tool for safe, accurate reloading