Ive killed a couple of hogs while turkey hunting. They wandered into my setup and got a load of copper plated #5's between the blinkers. DRT. At short range, 20 yds or less, with a tight choke it will kill the snot out of them.
Watched a friend roll two with Hevi Shot Dead Coyote loads Range was about 25 yds and shot was to head and neck. All were pigs about 50-60 lbs. Not my first choice of loads but they worked.
FWIW, A shotgun with buckshot kills the crap out of them if the user is at least moderately competent. Ive killed dozens with #1 buck out of a Beretta 390.