Hornady Custom Grade Dies are meticulously manufactured using precision CNC machining to ensure extremely close tolerances. These precision dies give the reloader additional control over the ammo-making procedure. The Hornady Custom Grade Seater Die is a great die for the avid reloader. The Seater Die will improve your bullet seating and accuracy with its floating bullet alignment sleeve and stem. The floating sleeve is designed to align the bullet and case prior to seating preventing any deformations on the base of the bullet. The Seater Die features a roll crimp.