"I think teddy used a 1895 Winchester in .405 win to shoot elephants,lions and rhino,s and maybe cape buffalo too."
Indeed. As did Osa Johnson in the 1920-1930s, the first female licensed PH in Africa.
https://en.wikipedia.org/wiki/Martin_and_Osa_Johnson
IMHO, Osa was as cute as she was deadly! Always a combination to be treated with care and respect.
My modern Miroku/Winchester 1895 .405 has taken a lot of medium game and two biggies; a Cape Buffalo and one Asian water buffalo. Used hand loaded premium bullets on the two biggies.
The 400 grain Woodleigh bullet (at 2100 fps) used on the Cape buff and the 300 grain North Fork CPS (at 2250 fps) used on the water buff were definitely "premium " bullets; both did their job very well.
Those familiar with the ballistics of the 450/400 will note that the same 400 grain Woodleigh bullet in the .405 is in the same velocity envelope. Therefore, the .405 is capable of taking ele, but my 1895 .405 has not had the opportunity.
Now for the elephant ? Yes!
Here is my lever action 1886 .45-90 (.458 2.4) "elephant gun"
It has taken game from Blackbuck to Bison in Texas and Leopard, Cape buff, and ele in Africa.
The African game was taken with hand loaded .45-90 ammo using a variety of bullets from cast to Monolithic. The buff primarily with Kodiak FMJ 450 grain at 2150 fps. The Leopard with Nosler PP, and the ele with NF and Punch solids(with frontal brain shots).
This rifle has NEVER jammed or failed to function properly when shooting either 45-70 ammo or 45-90 ammo (which it can do interchangeably).
The Marbles folding barrel sight is good for close up biggies and the Marbles fording peep for smaller and/or more distant targets.
I trust this will answer the yes/no part of this discussion?
If not go read the Vince Lupo 45-70 Safari stories:
http://www.garrettcartridges.com/luposafaris.html