I have used the 180XTP on deer with great results.I can tell you that at a bit over 1300fps it expands at 71 yards. That is the farthest kill I have with it.
From doe at 71 yards:
"A quiet hit in the right place is better than a loud miss in the wrong place followed by 10 more shots on the run"
I was a handgun hunter, when handgun wasn't cool.....