The .30/06 has accounted for just about every species of African game that walks. It is too light (and illegal) for hippo, rhino, elephant, cape buff and lion, but it has accounted for those species as well. Actually, I think it is legal for lion in Zim (but I wouldn't recommend it for that species).
The longest shot I ever took in Africa was at a gold medal springbok, with a .30/06 off the sticks, facing me at 315 yards. Boom, plop.
Great cartridge!
