Like others have said, the .300 H&H spits bullets out at speeds similar to the .300 WSM and .30-06AI, and is not much slower than a .300 Win or any other 300 Mag.
Eland are about the size of an AK moose, and I doubt anyone would pass a moose up with those rounds and a good bullet.
Lions average what? Around 300-400 pounds? They're supposedly tough, but I wouldn't hesitate to put a TSX, A FRAME or even a damn partition into one via .300 H&H.
