Not to contradict anyone, and with all respect, I think if you get some 158gr LSWCHP+Ps, you'll do just fine. It seems to be about the ideal load out of a 4" barrel. It's been referred to as the Metro load, RCMP load, FBI load, NYPD load, etc. I've put a few through a deer carcass as a test a few years ago and it really expands well.
FWIW
YMMV
MD