Hornady’s Lock-N-Load Cartridge Gauge for 6mm ARC provides a straightforward method to verify that cases and assembled ammunition fit SAAMI-standard chambers. Constructed of stainless steel, the gauge is intended to identify oversized, swollen, or out-of-spec brass before use. This simple inspection tool supports reloaders and range technicians who perform routine quality checks on ammunition and cases.
Key Specifications
- The gauge is designed for the 6mm ARC cartridge.
- Primary function is to ensure a correct fit for cases and ammo in SAAMI chambers.
- Constructed of stainless steel for durable inspection use.
- Compatible with loaded or unloaded brass casings to check for oversize or swelling.
- The listed product weight is 0.26 as provided by the manufacturer.
- The listed shipping weight is 0.26 per manufacturer data.
- Manufacturer is Hornady.
Compact and purpose-built, the Lock-N-Load gauge makes routine chamber-fit checks fast and repeatable. It’s a practical addition to a reloader’s bench or a range toolkit for anyone who values consistent, specification-compliant ammunition handling.









