Well... I've had mixed results with handguns and pigs....
45 caliber tends to have inconsistent results on them.
I fired a shot down the top of the head wit a 45 and it made an exit out of its chest, he locked up and fell over.. I went to get a rope from the truck and when I turned back around he was back up and walking
Killed a few with 9mm, it's no rifle cartridge is all I can say but will work...
In my experience with pigs, velocity rules the day at close ranges.