A Dangerous Game Gun is like condoms and duct tape. Better to have too much than not enough...
The problem of 'not enough' more often than not, has to do with not enough shooting skills rather than not enough gun.
WDM Bell wrote of people he hunted with using big bores than couldn't get the job done, Harry Selby wrote of inept clients with big bores-same problem,
and in our present times I still hear of furious PHs reporting that clients can't hit a 5 ton target with their .500cal
On the other hand, Bell wrote of a Sikh officer and his son killing 90 lions with a 7x57 and Selby successfully guided his 14 yo daughter onto
a bull to kill it with 7x57.
I am convinced some novices purposely carry big bores in the even they might need a 'stopper' and want to be the hero to save the day. This despite
the fact they don't even have skill and nerve to make that happen. You can kit yourself out to make it look like to the world you know what you are doing,
but when things go south, end up drilling your PH with a .458 Lott rather than the DG...re; Tim Herald.
It makes sense to use a calibre you can actually handle and most importantly, to leave the professional work to the professionals.
