Originally Posted By: Recoil Rob
Aforementioned W&S M700, c.1966.




Apparently they came in different flavors but the 3" may just be on the label for the 20ga. Has anyone ever seen a M700 w/ original 3" chambers?

I've never seen a 700 with 3" chambers. I think you're right: Only for the 20ga magnums. And I'm not positive, but I think all of those may have been 720's. Likely a concession made to the American market, given the popularity of the 3" 20ga back then.