I'm kinda fond of removing the forend taking the barrels off and going no further !
If it requires more then that I take it to a gunsmith I can trust and let him deal with it !
I will however not take a nice double to a gunsmith until he's proven to me on someone else's fine shotgun that he's capable !
I trusted my gunsmith buddy to work on my Westley Richards 12 bore . All it needed was a good action cleaning as it had years of lint from inside a leg o mutton case . Anyway while he was taking it apart I had to leave the room !
Can't stand watching someone work on my stuff