Shot one - underlever hammer Jeffrey 600Nitro - 5 shots in 25 seconds in a competition.

No problems with recoil but not sure I would do it on a regular basis.

I wouldn't mind owning one but if I did it would have to be a Hammerless Ejector.

Haven't hunted with one but apart from Elephant or as a PH,
I can't see what you would hunt wit it that can't be handled with a 500Nitro or similar. The effect of 500Nitro's on Big 1 ton game is impressive enough plus the added advantage of having it in a gun you can personally carry all day.