We use the Norma Oryx bullets in 9.3x74R, 9.3x62 and 275 Rigby. We have killed warthog, gemsbok, zebra, impala, whitetail deer, blue and black wildebeest, springbok, kudu, bushpig, nyala and Texas pigs. I will look for pics of the 3 bullets we have recovered (2 in 7mm and 1 in 9.3) but they were perfect mushrooms found in the offside skin. Mama shot a big warthog in the head with her 275 and we found the beautiful, mushroomed bullet under the skin on the hip and it had just lost a couple grains of weight. It is not a bullet to hotrod, and I would compare it to an "improved" stronger version of a core lokt. I have never seen one come apart or explode like Hornady interlocks or Noslers.
Would I use one on an eland? Yes, unless the PH didn't like the idea, then I would respect his opinion/experience and use a Barnes/Swift/North Fork. Would I use it in my 416 Rigby for buffalo? No, unless I didn't have any other choice.
Safe hunting