4 die set obviously.
Not sure what River was thinking when he typed that.
My mistake. I called Hornady today and got my answer. The 546516 is a 3 die set that has a sleeve inside the seater die that applies a taper crimp.
546515 has 3 dies with a seater die that applies a light roll crimp die, then you can taper crimp in a separate operation with another die (not included).
I will be loading on a single stage press so I will order the taper crimp set as the tech said that is more forgiving.
Thanks.
