As far as a 22 in the ribs not killing one of the big mean bulletproof pigs, a guy I worked for a a kid killed a giant boar with a single Golden Bullet. He saw the pig in his field and grabbed his 16” Rossi pump 22 out from behind the seat. He got to within about 75 yards before it winded him and took off. One shot, on the run, through the ribs and he folded like a lawn chair. Hired man said it was cause them Golden Bullets was hollow points.