I recently found a 357 SIG exchange kit for my 9mm SIG P226. What a screaming hot round. I've only put a couple of hundred rounds through it, but I find it comfortable to shoot and it strings together nice tight groups. I did decide, though, that I would reload for it to bring some economy to shooting this caliber. After some experimenting and much reading, I've loaded about 100 rounds (Longshot and MG 125 gr bullets) and all seems fine. I think I'm becoming a fan!