Hello, new to the forum and have a question. I can get a very good deal on a new 31 in 357sig. I can't reload for it due to my press is pistol only, and Dillon does not make dies for the sig round. I want to convert it to a 9mm using a loan wolf barrel for my girlfriend to shoot steel with. I want to keep the recoil as light as possible by adjusting the loads and the springs. What would be a good starting point? Thanks!