Hornady Lock-N-Load Modified Case A Series 7X57 Mauser is a specially prepared case designed for use with Lock-N-Load Precision gauges. It features a fine thread to secure the case to the gauge and a neck that is made perfectly round and opened slightly to allow concentric seating of a standard-diameter bullet. These modifications support precise alignment in the chamber for repeatable reloading and measurement tasks.
Key Specifications
- The cartridge is 7 mm Mauser (7 x 57 mm Mauser).
- The series is A.
- Compatibility is with Lock-N-Load Precision gauges.
- Attachment uses a special fine thread to secure the case to the gauge.
- The neck is made perfectly round and opened slightly for concentric bullet seating.
- The case helps ensure perfect squareness for precise alignment in the chamber.
- It is designed to allow a standard-diameter bullet to slip into the case mouth effortlessly but concentrically.
For reloaders and gunsmiths focused on measurement and chamber alignment, this Hornady modified case provides consistent, precision-engineered preparation that integrates with Lock-N-Load Precision tools. Its fine thread and concentric neck geometry streamline setup and reduce variables in case-based gauging and seating operations, making it a practical addition to a precision reloading workflow.
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.




