Simply thread your die (7/8"-14 thread) into the Lock-N-Load Die Bushing (male) and insert the assembly into the press bushing (female). Twist it clockwise to lock it in a solid, perfectly-aligned position. Then adjust your die as usual and tighten the lock ring. Remove by twisting reverse 1/6 turn. The die assembly comes out and the next die assembly can go in.
Hornady reloading presses come with Lock-N-Load bushings installed. With the Hornady Press Conversion Kit, you can also convert other presses to Lock-N-Load technology (1-1/2"-12 thread).
