Hornady Custom Grade 6mm ARC Rifle Seater Die - Hornady bullet seating dies feature a floating in-line sleeve designed to minimize bullet run-out (misalignment caused by tipped bullet). The cartridge neck and bullet are aligned in the floating sleeve prior to seating the bullet for in-line, precise bullet seating. Improves Bullet Seating And Accuracy Great Die For The Avid Reloader Features A Roll Crimp 6mm ARC