Yep, 4 years without a hiccup and in one blink of an eye (Flinch LOL), BAM done T-Boned my chrony and sent it to the landfill!
Anywho, with my M&P off to S&W I have been working up the Mrs. a nice load for shooting and CCW in her 637 airweight. The bullet im working with is a 358156 cast from 40:1. I have been through BE, TG in the 800-850 range and recently tried 4.2 of Trail Boss and WOW what an accurate and soft shooter for her. She likes!
My concern is the velocity is going to be probably in the 600-700 range ( Post Chrony Guess) and not sure if this is going to drive that bullet deep enough for CCW. She is very accurate at 7-10yds with it.