I also belieive in taking a bit more gun than you think you'd need. One of the heavier 75gr bthp might be what I'd use if I was hunting speed goat with an AR and not wanting to snag a new caliber upper. Though I have a Rem 700 in .243 Win I'd use for them as a personal choice. Wouldn't go with a mag round for antelope though, too much impact and you waste meat.