4-Die Sets feature a separate taper crimp die and powder charge/expanding die. The powder charge/expand die has a special hollow 2-step neck expanding plug which allows powder to flow through the die from a powder measure directly into the case. The powder charge/expanding die has a standard 7/8 x 14 thread and will accept Lyman’s 55 Powder Measure, or most other powder measures. Set includes Tungsten Carbide size die (no case lubrication necessary), powder charge/expand die, bullet seating die and taper crimp die. Shellholder sold separately.