Overview

The Dies That Keep the King of Magnums on the Throne. For over sixty years, the .300 Winchester Magnum has ruled elk camps, African plains, and 1,000-yard ranges with unmatched authority. But only when it’s fed handloads built on Hornady Custom Grade dies does it truly live up to the legend. This Series I 2-die setfull-length sizing/decapping die plus Zip Spindle seating die with built-in crimperis CNC-machined from hand-polished American steel and heat-treated to survive a lifetime of hot loads and hard use. The magic starts with Hornady’s revolutionary Zip Spindle: oversized, positive-locking threads that banish spindle creep forever. Lock your seating depth once and it stays locked for the next ten thousand roundsno more chasing OAL after a long day at the bench. Combined with the ultra-smooth TiN-coated expander ball, Sure-Loc rings that actually stay put, and a sliding bullet alignment sleeve, these dies deliver the kind of repeatability that turns good rifles into one-hole machines. Feel the difference on the very first stroke: Cases glide through the sizer like they’re greased twice. Shoulders bump back exactly the same every time. Bullets seat dead-straight with perfect neck tension. Velocity spreads shrink and groups collapse. Load 200 gr ELD-X for elk that never make it out of the meadow, 212 gr ELD-X for 1,200-yard steel, or 225 gr A-Tip Match just to watch jaws drop at the range. With Hornady Custom Grade dies, the .300 Win Mag doesn’t just performit dominates.