The Hornady Lock-N-Load Modified Case A300M is designed for reloaders seeking precision when measuring bullet seating depth for .300 Winchester Magnum cartridges. This accessory interfaces with Hornady Lock-N-Load O.A.L. gauges, ensuring reliable setup for consistent loading and chamber fit.
Special fine-threaded case-head for secure gauge attachment
Slightly oversized neck accepts standard diameter bullets smoothly
Made from brass and manufactured to SAAMI specifications
With its purpose-built design and compatibility, this modified case provides accurate, repeatable results for anyone optimizing their .300 Win Mag reloads. Rely on this Hornady accessory to support precise chamber measurements and consistent ammunition performance.