Some kind of heavy truck.
No but seriously, don't expect too much out of a pistol. I liked Federal's 147+P HST, would be my choice, or Winchester's 147 Ranger-T.
Or the 124+P HST, or pretty much any of that sweet fourth generation (current production as of a couple years ago) Ranger-T or the regular 147 HST would be the top of my list.
But any of the premium bullets from the reputable manufacturers should be a fine choice, like the Speer Gold Dot, Remington Golden Saber, any of the loads made with the Barnes XPB bullet like Cor-Bon DPX, Winchester's PDX, Hornady's XTP doesn't expand as much but it's earned itself a reputation as a very accurate bullet and it penetrates well, that's all I can think of at the moment, I'm sure there are one or two other good choices out there as well.