Hornady Custom Grade Series I 2-Die Set 300 Win Mag Sizing/Seater

The Hornady Custom Grade Series I 2-Die Set is a high-quality full-length reloading die set purpose-built for the 300 Win Mag bottleneck rifle cartridge. Designed for handloaders who demand precision and long service life, this set is the foundation for loading accurate, consistent .30-caliber magnum ammunition.

This two-die set includes a full-length sizing die and a bullet seater die. The full-length, non-bushing sizing die resizes the case body, expands the case neck to proper diameter, and decaps the spent primer in a single station, restoring fired brass to factory-spec dimensions for reliable chambering. The seater die features an easy-to-adjust seating stem that lets the reloader fine-tune bullet seating depth to match published cartridge overall lengths or custom load development goals. The set is also equipped with Hornady's signature Compression Lock o-ring design, which provides smooth, consistent tension on the adjustment screws for easier, more accurate fine-tuning.

Hornady's Custom-Grade dies are machined to tight tolerances and backed by the company's guarantee that they will never break or wear out from normal use, making them a workhorse addition to any reloading bench. The set ships packaged in a standard Hornady red box. Whether you are loading for hunting, long-range shooting, or general practice, this Series I die set delivers the reliability and accuracy that handloaders have trusted for decades.