The Lyman case length/headspace gauge provides a straightforward method to inspect resized bottleneck rifle cases for proper headspace and overall case length. The reloader simply inserts the case into the gauge to determine whether it falls within allowable limits or exceeds the maximum. The gauge also flags cases that exceed the maximum allowable case length. Any case found with excessive headspace should be removed from service and discarded to maintain safe ammunition standards.
Key Specifications
- Intended use is case length and headspace inspection of bottleneck rifle cases.
- Overall dimensions are 1.45 x 1.55 x 6.75.
- The listed length is 6.7500.
- The listed height is 1.4500.
- The listed width is 1.5500.
- Construction material is metal.
- Operation: insert a resized case into the gauge to verify it does not exceed maximum or fall below minimum allowable headspace.
- Functionality: the gauge will identify cases that exceed the maximum allowable case length.
This gauge is a compact, durable inspection tool for the reloading bench, offering a simple way to check critical dimensions after resizing. It is suited to reloaders and gunsmiths who prioritize safe, repeatable case preparation and straightforward, mechanical verification of case length and headspace.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




