Last time I looked, the MINIMUM caliber you could use on dangerous game in Africa was a .375. And for elephants, they prefer 458 Lott and up. So the writer knows as much about weapons, as about ...
http://www.snipercentral.com/338.htm
More about the .338 Lapua.
I have read that in AK, Fish and Wildlife carry a .375 H&H Mag. Besides what I have seen at Cabelas, I'm clueless as to what one would carry in Africa! I do remember a nice double barrel .465 nitro (rem?) mag in their 'fine gun room'. Someday, when/if I ever have $$ to burn! Can't even imagine the recoil on a rifle like that.