Chicago,
Some years ago[Circa 1980] Eley U.K. published records of their cartridge sale over a three year period. These sales figures provide a good indicator as to the % of guns made/in use,by various bore size.
1OG 0.1%
16G 3.2%
20G 3.2%
28G 0.5%
.410 6.0%
12G 87.O5
It can be seen that regardless of maker, with few exceptions, example,Watson a specialist in small bore guns,small bore guns bearing English makers names are few and far between.

Last edited by Roy Hebbes; 05/23/14 08:45 AM.
Roy Hebbes