I think the issue is less about toughness and more about placing a bullet or broadhead in the vitals. Like many African game and wild hogs, their vitals are lower and farther forward than a whitetails. If you try to center punch lungs back from the shoulder like you do with whitetails, you’re going to more often catch liver-guts. Shoulder shoot them with any big game rifle and they won’t go far. My last archery kill went 15 yds after taking the top of the heart off....
Sorry, but behind the shoulder shots with good bullets kills the crap out of 'em, easily. Their lungs are huge, and they don't tolerate holes any better than any other animal.
