The Lyman Case Length/Headspace Gauge 6.5×55 S is a dedicated tool for reloaders who need a straightforward method to verify headspace and overall case length after resizing. It is intended for use with bottleneck rifle cases and helps ensure that cases remain within the manufacturer’s allowable dimensions. The gauge provides a quick go/no-go check to identify cases that exceed safe limits.
Key Specifications
- The manufacturer is Lyman.
- Model designation: Case Length/Headspace Gauge 6.5×55 S.
- Intended cartridge: 6.5×55 S bottleneck rifle cases (taken from product name).
- Primary function: verifies headspace and case length after resizing.
- Operation method: insert case into the gauge to check maximum and minimum allowable headspace.
- Capable of identifying excessive overall case length so affected cases can be removed from service.
- Manufacturer caution: destroy cases found with excessive headspace (per Lyman guidance).
- Listed weight: 0.12 (unit not specified).
- Listed shipping weight: 0.12 (unit not specified).
This purpose-built gauge offers a simple, repeatable check of critical case dimensions to support safe and consistent reloading practices. Its straightforward operation makes it a practical addition to a reloader’s bench for maintaining proper headspace control and case integrity.
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.




