I used them on Plains Game including Zebra, Kudu, gemsbuck, Wildebeest, Hartebeeste, etc at just about every conceivable angle and had excellent performance. I don't know if anyone mentioned this but I recommend crimping with rifles in the 338 class and up.While I personally haven't shot Cape Buffalo with them I have seen them shot with Northforks and they worked as advertised too.

I shoot the 200gr 30cal in my 7.82 Warbird with a good dose of Retumbo and it rivals the accuracy of the 200gr Accubonds shot out of the same rifle.