Hornady reloading dies exemplify superior machined craftsmanship. The precision machining facilitates accurate reloading by enabling easier adjustments, improved alignment and smooth operation. Featuring one of the industry's finest internal finishes, Hornady custom grade dies ensure a lifetime of reliable reloading. These dies are engineered to such high standards that they will not break or wear out under normal use. These dies uniformly apply a subtle bell or flare to the mouths of straight-walled rifle or pistol cases, optimizing them for seamless powder charging and bullet seating The Hornady Sure-Loc lock rings encircle the die, exerting uniform pressure to secure the ring The locking screw fastens the ring without thread contact, preventing potential damage from pliers