An old topic but still relevant.

I also have two very big bore double rifles in my gun safe, one caliber 577NE and the other one caliber 600NE. I shot a lot with both, but never hunted with it.

I know for what they were supposed to be used, especially elephant hunting, but I did not really know how such very heavy not easy to handle devices could be used efficiently in our times. I have already thought about going hunting elephants with one of both, but my rifle caliber 500 Schüler with a scope does the job much better. This is nothing new, and at the beginning of the 20°Century, a few professional hunters left his double rifle caliber 577 Nitro Express in the gun safe in favor of a bolt action rifle caliber 416 Rigby for example.

Anyone who use regularly for hunting in Africa a rifle with scope and values perfect shot placement, is forced nowadays to adapt his hunting to the weapon if they want to use a very big bore double rifle with open sights.