I also use iron sights on mine, and have killed pigs, donkeys, a brumby and a wild dog (as well as some of the big stuff here). Having never been to Africa, I don't have the faintest idea how zebra compare to donkeys in terms of how close one can get, or how pigs compare to warthogs in the same way. The donkeys I shot were at what I consider to be extreme range for me and this rifle, at about 120 metres. As a result, although I got them, shot placement was not what I would prefer (although I was much newer to the rifle then). I suppose two points to consider are that although it would work, you would be dismissing a fair percentage of shots otherwise available with a fast, scoped .30 (or similar), and that at the extreme limit of your ability in terms of range, the risk for expensive misadventure increases. But, aren't they just a wonderful little rifle / cartridge combo! Good luck!