I agree, the 270 caliber is a good choice for African antelope's...within reason. I've shot everything with a .223 (small pygmy antelope to Impala sized game) or a .280 on large antelope and Leopard. That said, I would caution the first time African hunter to make sure they are very good shots off the sticks and using a quality bullet that has controlled expansion. Wounded and lost trophies means paying an empty trophy fee. If in doubt, take something in the .30 caliber range, IF you shoot it well. If you need a lighter caliber for say Duiker/Steenbok, then ask your PH AHEAD of time if they can loan you a light rifle for said species. Don't under estimate those little antelope. They can be quite the challenge to hunt!