The all round Africa rifle, a 450-400? I'm not too sure I agree. There seems to be a myth that African animals are bullet proof, pretty sure they are not. Today 90% of your safari and 100% of most safaris would be plains game, a 30-06 or similar will tip all that over. Yes it would be nice to take a 450-400 and the romantics are there for sure. But lets be honest you would handicap yourself taking just a 450-400 double on safari.