The Hornady 3-die set is designed for straight-walled cases which includes Full Length Sizer Die, Expander Die, and Seater Die. The Full Length Sizer Die features a Zip Spindle, with a series of light threads cut on the spindle and spindle collet. The Seater Die is designed with a floating bullet seater alignment sleeve and seating stem that aligns the bullet with the case, to improve bullet seating and accuracy.
Please contact Hornady directly with any concern about performance, manufacturing defects, or warranty issues. Their contact information is found on their web site www.hornady.com. Their main switchboard phone number is 308-382-1390 Monday thru Friday 8am to 430pm Central Time.