This maybe off-topic for the discussion but not the title. If so I can shift it somewhere else.

But when discussing light and medium calibres in double rifles, does anyone see any real benefit in going below the .350/.360/9.3 and maybe even .375 class of double to say a 7mm, .30, 8mm etc ?

I think the .318s and .333s with the heavy bullet loadings are also a 9.3mm anyway.

The smaller calibres are certainly nice, but do they do anything a medium calibre doesn't do better?

My main view on the most popular uses for doubles on medium game is hunting in close cover or running game. Surely a 9.3 - 286 gr or .318 - 250 gr or similar, is better for this than any 6.5 or 7mm ?

A discussion point of view.