I use a lot of range brass. The thickness of the cases vary considerably. To insure function in any pistol I might use them in, I have found the Lee Factory Crimp Die is good insurance. I use it to crimp as a separate operation from seating. I use the LFCD for everything I reload, including rifle. If you don't want to add the forth die to your process, be sure and buy a chamber gage to check your loaded rounds to make sure they will function properly. I loaded for a couple of years with a Pro 1000. I would put the LFCD in a single stage and run all my loaded rounds thru it. It's that important.
Savage