Agreed.I think that is nuts for Africa.
I use 300 gr on everything. Reaches as far as I will ever shoot on that continent, and I am assured of having the right bullet and scope combination whenever I need it. Simple is good.
Keep it simple and use a premium 300 grain bullet like the Swift A-Frame.
As for the 2 scope thing - it's not a horrible idea to have 2 scopes, just a pain to be packing it everywhere "just in case".