So my "all the time" gun is a 642 I've shot it a far bit and am comfortable (as one can be shooting +p from a airweight J frame) with it. I have not yet decided on a load I've read alot about it but its all conflicting. What I have decided is I want to go on the heavier side. That pentration is far above the top concern over expansion. Which is why I don't carry 110 or 125 grain ammo. THe 135gr Gold Dot caught my eye but its very hard to find. I've read about using target 148 gr Wad Cutters as they test well but I have not heard of anyone actually using it in a shooting. I was considering the "FBI load" 158 gr LSWCHP from Remington or Winchester. I don't know what kind of pentration it gets but its reputation is solid. I know this subjects been covered alot but any help would be super. Thanks