Greetings rossk,
Khomas Highland Hunting and Fishing Safaris of Namibia, welcomes you to the greatest forum on earth.
Being as today’s staggering lineup of factory cartridges covers literally all ballistic requirements, from sparrows to elephants, I fail to understand the appeal of “wild cat” cartridges.
And so, I am not familiar with many of them, including the .411 KDF.
So, I googled it.
It looks like the .416 Taylor.
One of my friends has one of those, for whatever reason, (perhaps known only to him).
My favorites in .40 caliber are the .416 Rigby, because it is available in factory ammunition and the .404 Jeffery, for the same reason.
The Rigby is a huge volumous cartridge, capable of great power, without super high chamber pressure.
However, recoil is very “sporting” so, I do not load it to full capacity.
The .404 is sadly hard to find in a decent rifle at a working man’s price.
And recoil is noticeably less than the Rigby.
I suspect your .411 KDF is not as fierce in recoil as the Rigby and that is definitely a good thing.
Anyway provided properly tough bullets are available for it, I suspect your .411 KDF would be a real good buffalo getter.
With 400 grain solids, I suspect your rifle would also be totally adequate for hippo on land and even elephant, including cheeky, grumpy ones.
Anyway, thanks for joining.
Best Regards,
Velo Dog.