Fiver, I don't know where your Antelope are but where mine are we have Yotes, Wolves, Black and Griz bears, Mountain Lions and feral dogs all of which prey on Speed Goats ----- then there are the 18 wheelers who think nothing of plowing thru 100s of them during the migration. Our herd, largest in USA, has taken a real beating (as have Mulies) from terrible winters in the past 10 years. I hunted Whitetails for 40 years and find a nice buck far easier to kill than a trophy Antelope and Elk even easier. Hard is a Trophy Mulie outside the rut or a 10 year old Bighorn.