the problem is pretty simple...
At ranges that you will likely shoot a hog, a 5.56 is travelling at fragmentation speeds. You don't really need MORE fragmenting than already occurs. Unless you plan to engage hogs at ranges about 100-150 yards, you don't need to worry.
Most of my encounters were in the sub 25 yard range. I tried to get as close as possible. I hunted alone and crept in close to observe them before taking a shot. When I fired the hogs had no idea where to go, in most cases, since the sound came from the middle of their group. And suppressed it was even more confusing.
Use FMJ, carry a full mag and a spare. FMJ penetrates the thick hide, breaks bones and explodes in the meat.
Personally, I don't care for eating lead. So, I now use a 9mm for all my hunting. Even deer.
FMJ 5.56 is designed to break apart, and it does it VERY well.
TRG