Karamoja Bell shot most of his 1,011 elephants with a .257 Rigby. Nowhere in Africa would that even be allowed in the last 30 years.
baboon,
TRUE, though Karamoja Bell said that a shotgun was THE weapon for STOPPING a wounded dangerous animal. = The .275 Rigby/7x57 Mauser also certainly worked for him as well.
You cannot argue with Bell's success as a PH, though a British NCO during WWII, shooting game to feed Italian/German POWs, MAY have surpassed Bell's take. The SGT's weapon was a "plain vanilla" British SMLE.
(Nobody as far as I can find is sure about which one "owns" the "record".)
yours, satx