Hornady's Custom Grade Series I two-die set for 300 Win Mag provides a lifetime of reloading, guaranteed never to break or wear out from normal use. The Zip Spindle design features a series of light threads cut on the spindle and spindle collet, eliminating slippage and making spindle adjustments effortless without knuckle-busting tightening. Designed for popular bottleneck rifle cartridges, this Series I two-die set includes a sizing die and a bullet seater die for reliable, consistent reloading performance. Safety Note Proper die setup and adjustment are critical for producing safe ammunition. Follow published load data and standard reloading safety practices.