I used to carry the Buffalo Bore #20A 158gr +P's in my 642-1. BB claims that load just exceeds 1000fps from a 2" barrel. When I first bought some, I fired five rounds in about 5 seconds to see how it felt. It was unpleasant, for sure, but not uncontrollable. I have Altamont wood boot grips on my 642. Had I put the Hogue tamer grips on there, it would have been a lot better. I love the way the Hogues mitigate recoil, hate the extra bulk they add to a J frame. No free lunch. I have since switched to carrying the Speer Gold Dot +P's in my 642. The lighter bullets shoot to point of aim in my 642, where the 158gr's shoot high.