Wow, you guys might be on to something!

I went to my local large gun store just to look over the DG (1) and it was a Blazer (sp) of something like that...horrific design with some kind of strange mechanism once you open the breech. The shop guy said it was to allow using the same rea helf with different caliber barrels??!! plus it had a way to "regulate" the barrels via set screws.....I don't believe I would want something that looked that contrived.
TC