"If it is a herd of pachyderms that needs to be thinned, use the long 160 grain bullet. 160 grain RN solids (loaded in the somewhat smaller 6.5x54 Mannlicher cartridge) are what the famous British ivory hunter WDM Bell used to kill the many of the 1000 or so elephants he shot in East Africa." (From an Article called Sensible Rifle Cartridges)
I am sure he didn't shoot them in the butt.
JC(AL)
P.S.: He also used a "larger" 7x57 Mauser:"He appreciated the light recoil, accuracy, and deep penetration of the 175 grain FMJ 7mm bullet, and felt that the combination made a superb cartridge for executing elephants with precisely placed brain shots."