I did some research today and found on the Lee site some nice crimping dies. I will have to call and find out if they will fit the Dillon and what they think is the best way to go. I am still going to talk to RCBS about their 2 die set. If they make it and sell it......It Should Work!!!!!! As described in one action. seat the bullet and roll crimp at the same time! Still any one with any experience in this area please feel free to let me know what you found out with the 25001 set and what you think is the best solution. Try what I've got and see how it works, Tell me what bullet to use that the cannelure is in the right place for the roll crimp and the OAL at 1.173. Or what Crimp die to get for station 4........Thanks in advance!!!!!!!