On deer, I usually get two holes. One in, one out. Sometimes the arrow stays in, sometimes it zips on through. It varies depending on the animal and the angle. That's using wood with everything from 80# plus to 50#. I do draw 31" or so, so that does add a little extra oomph.
On hogs, it's usually about the same. I've shot a few big boys and gotten two holes, but I mostly use the heavier bows. The last big boar I shot, though, I got good penetration, but his offside shoulder stopped the arrow from exiting. He still died.