I've killed them with a couple of 257 Roberts using 100 and 115 grain bullets, a 270 with 130 grain and a 7X57 with 139 g. bullets. Have seen them taken with a 30-06 with 165 grain bullets, a 7MM-08 with 120 g. bullets and another 270 with 130 grain bullets. Nearly all were shot at 200 yards or less.
All of the above worked fine. Antelope are not large animals. Use something that you can shoot accurately with decent bullets and almost any cartridge will work. The power of a 300 RUM is not needed.
(Wind is almost a given when hunting antelope and it gives me fits. So I try to avoid long-range shots. I also pick bullets with high ballistic coefficients to better deal with the wind.)
If I ever draw another tag I'll use a 257 Roberts.
"It is wise, though, to remember above all else: rifle, caliber, scope, and even bullets notwithstanding, the most important feature of successful big game hunting is to put that bullet in the correct place, the first time!" John Jobson
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