Welcome

big English makers - I prefer H&H guns - many reasons - looks, features, fit,
feel, balance, build quality (depending on year) etc etc. I like WR's, especially
the Droplocks but nothing compares to an H&H Sidelock. I like the Rigby
Sidelocks - that is Pre 1945 - not the rubbish they produce that pretends
to be a rue Rigby.

Re "have any of your rifles doubled, and if so, what was the cause,
chambering, and how bad was the shoulder/collarbone injured? "

Yes, the only time I decided to fire a new double BEFORE I gave it to the gunsmith
for a new gun's "once over clean, check etc, it doubled at the range.
Calibre 500/465.

I gave it to the gunsmith and let him know and he fixed it. I think it
was just a worn sear but it was fixed and that's why I get all 2nd hand guns
I purchase given then once over BEFORE I go out and use it.

What are your prefered chamberings, and why?
375 Flanged Magnum - great calibre, charisma, different and I own
a Rigby Sidelock in it !!!

500 Nitro - Because it has more killing / stpping power than a 465 / 470
and everyone has a 470 so I went with 500 Nitro's.

450/400 (Both types) - the most underestimated calibre of the whole range of British
double rifle calibres.

The above is just my HO.

500 Nitro