Hornady 546585 DIESET 4 500 S&W MAG Smith & Wesson Custom Grade Reloading DIE Set (Series V DIE Set) (.500) Includes easy access die box, full-length size die, seating die New Zip Spindle design Wrench flats on Sure-Loc Lock rings Elliptical expander polished to a smooth finish All Hornady dies are warranted against defects in material and workmanship for the life of the product