Since Elephant is on the list, the .416 Rigby, and scope it. A friend of mine made his first safari 3 years ago, in Namibia. Plains game was the only thing on the menu, but he took his Ruger 77 in 416 Rigby, and everything he shot at, including Eland, and Giraffe, was a one shot kill. His longest shot was pushing 300 yards.