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The Hornady Lock-N-Load A300M Modified Case is a precision reloading accessory engineered for use with the Hornady Lock-N-Load O.A.L. Gauge, specific to the .300 Winchester Magnum caliber. Manufactured from brass and designed to SAAMI specifications, this modified case features a threaded case head and a slightly oversized neck for proper measurement. It is essential for reloaders who require repeatable and accurate bullet seating depth measurements.
This Hornady modified case provides a reliable reference point, streamlining the reloading process for the .300 Winchester Magnum. It is a valuable accessory for precise ammunition setup.