On deer or antelope, I see no reason to use premium bullets like the NPT when the excellent Hornady 129 sp works so well. Actually, I’ve used the Hornady 129 on a couple of very large cow elk with perfect results.....
Friend's wife used the same 129 Hornady IL on a rag-horn bull elk earlier this week as well. 150yds, broadside, dropped @ the shot and nary a wiggle.