tunofun
Take a look at the Chapuis or a Krieghoff. They both make "working" doubles. Also the 9,3x74R's are much lower priced that the big bores. I have a Chapuis 9,3x74R that I really like. However, if I was hunting Australian buff I would want at least my 450/400 or my 450 No2, so in new made double the 470 is the best way to go.