If it has no hand to rotate a cylinder wouldn't it be 2nd model? The original poster was lucky to have had a 6" barrel, which was the least produced. On my gun, which is a 3rd model, it has an 8" barrel, but a non matching number 2nd model barrel. When I spoke to Roy about it he commented, target shooters then and now alter their equipment to get any shooting advantage. I could just about picture a couple fellows at a gun club and swapping barrels because the 8" was just a little lighter and "felt" better and improved his shooting.

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H Richard
SWCA1967 SWHF244