A stimulating discussion. I like to think that I appreciate any fine weaponry from whatever maker produces it. If you are comparing or contrasting British gun and rifle makers with European gun and rifle makers you must include ALL of Europe. The Eastern Europeans, Italians and Spanish have a long history of fine gun making and, although the Spanish (Basque) makers are having a difficult time right now, the Italians are still innovating and building fine guns, both traditional British designs and many fine designs that originated in Italy. Certainly, some very fine shotguns are made in Italy. both O/U and SxS.
Hartmann & Weiss in Hamburg makes guns and rifles as fine as any made ANYWHERE. The principles worked in England and have now 'one-upped' the English makers. Some people criticize German guns as 'cuckoo clocks' but Austrian gun makers like Johann Springer made many fine guns in the English style. And Harold Lindner (Suhl Germany) made top end shotguns for the American market retailed under the Charles Daly name - when the name meant something.
Right now I am having a .404 Jeffery Mauser rifle built by a Swiss-trained gun-maker, Reto Buehler, of Medford, Oregon. He makes some of the finest rifles being built today. He builds single shots - both break open and falling block - in the Austrian tradition and in the English style and excels in 'classical' English style Mauser rifles, especially safari rifles.
I own and shoot fine guns and rifles built in the USA, England, Scotland, Italy, Germany, and Belgium. No one country can claim exclusivity in fine gun-making any longer.