Thank you @fourfive8 I appreciate the article you refer to and for uploading the crux of the results of Chris Bekker's article. I am reloading and use Peregrine VRG3 in 286gr and VLR4 in 230 gr which at the time of the article was unfortunately included in the tests. I do however achieve good results with the Peregrine bullets although none thus far on DG, but on Eland, Kudu I had good results.IMO, by far the 416 Rem would be better caliber for buffalo. And I'm very uncertain about the minimum caliber and/or energy regulations for the different jurisdictions. I would imagine there is some "wink and nod ignoring of the law" that goes on, but that part is up to you, the PH and the Outfitter/Landowner.
In the May/June, 2014 issue of the African Outfitter, there is an excellent article on bullet performance by Chris Bekker. Well worth reading if you can find a copy.
Screen shot of test results of shooting various bullets out of 9.3x62 at close range into fresh elephant carcasses. Bones were intentionally avoided to help ensure consistency of the test, shot to shot. Results agree with what I've seen in my own wet pack tests and field observations with some of the bullet designs shown below.
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