I have not hunted for African dangerous game. But I did for wild cattle here in Patagonia. And I can say these are truly dangerous in the bushes!! And many times, mostly bulls, run for you when they think you are in their territory. I also have all my rifles with iron sights. May be I learned to shoot with iron sights...Bur any rifle for hunting should have it. And also I am a believer in carring buck up scopes when go hunting. Just in case...My point of view.
