On the other hand, I have several older guns welll above 6000 which appear from the factory letters and barrel measurements to still have been made with no choke. I think the 1875 number is close for a lot of guns including Parker, but I think a lot of people specified guns with no choke or with pattern densities wit smaller shot that would have required little choke to attain. I know I have guns made in 1880 to 1885 range which have what appear to be original non-bored barrels with no chokes. I doubt if many people actually had the chokes completely removed from standard barrels, especially on 10 gauge.
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