Lee Precision Reloading 300 WIN Magazine Ultimate Rifle Die Set For reloading 300 Wincher rounds Set is complete, with shell holder, powder measure and famous Lee load data featuring all common brands of powder in an easy to read logical format Full length-resizing die returns brass to factory dimensions; collet neck sizing die helps provide the best possible accuracy Easy Adjust Dead Length Bullet seating die foolproof the bullet seating adjustment Factory Crimp die provides a secure crimp on bullets with or without a crimp groove