Federal HST, Speer Gold Dot and Gold Dot2 (G2) and the Hydra-shok D. The GD and G2 don't get as big as the HST but still generally exceed protocol requirements. The HST is my favorite. What we see with short barreled pistols and revolvers is that the penetration is about the same, however it doesn't get as big (expansion). Expansion and penetration work in concert. The penetration is there because of the slightly reduced expansion. Expansion still meets the FBI protocol of 1.5 times the original diameter. FYI, my wife carries a J frame and carries 148 grain full wadcutters in it. I have shot them in calibrated gel and get 14-15 inches of penetration. She likes the fact there is little recoil and she shoots them very well because of this. I have seen two post mortems in my LE career as a result of .38 wadcutters and the results were telling. I think they are pretty effective and I'd rather she shoot something she knows she can hit with vs a fire breathing, hard recoiling +P HP that is hard to manage.