While I've killed a half dozen or so with my 9mm, it definitely isn't big medicine for them.
At least two of the ones I've killed were Boars >200lbs, and neither one folded and flopped, in fact one made it almost a mile, poor shot placement.
I cornered about a 300 lb boar that I'd chased for quite a ways on a bayou bank, when I went under the hill looking for him, I finally spotted him about 30 yards away looking at me under a limb. When I turned to raise my rifle he started under the limb, but I was already on him and a 55 gr TSX placed just over his eye left him kicking.
This post was edited on 2/18 at 9:42 am