This has been an interesting topic for me for years and I have kept a log of all guns I have measured. I believe the OP is getting reasonable and valid responses from others.
That said I have always been amazed at some of the measurements I have found (using Hosford gauge) on original chambered guns between chamber and forcing cone. Here are a few which cause me to ponder my personal limits since I would consider these original chamberings.
**Measured at point between chamber and forcing cone
1894 Parker (Dam) 16 gauge, 0 frame, 2 1/2 ch - .070/,075
1923 Parker (fluid) 16 gauge, 1 frame, 2 1/2 ch - .084/.084
1905 Parker (Dam) 16 gauge, 0 frame, 2 1/2 ch - .088/.096
1902 Parker (Dam) 20 gauge, 0 frame, 2 1/2 ch - .086/.089
1920 Parker (fluid) 20 gauge, 0 frame, 2 1/2 ch - .080/.097
I am in no way giving advice on personal limits. I am just pointing out there are original Parker small bores out these which would not conform to some of our personal limits.
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Last edited by Dean Weber; Today at 08:44 AM..
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