rajbcpa, Last night was the first time I used a 3 die set with a taper crimp & it seemed to work well. I have read & heard so much negativity about taper crimping with a seating die, that I think I was either very lucky or maybe it isn't as easy with 9mm. For 9mm reloading I have a Lyman 3 die set that doesn't taper crimp. I also have a Lyman taper crimp die.
I would like to hear from others who seat & taper crimp 9mm in one operation & are satisfied with the results.