I have a S&W Model 19 that I just bought as a security guard trade in from Southern California Electric (paid $200 for it and another $85 for a basic matte blue on it). I want to keep 357s in it for home defense but I have heard that you should not use 125 grain loads in it due to forcing cone cracking issues. What round would you recommend? I would also like to keep the muzzle flash to a minimum. Thanks