Bore Plot
Thank you for your inputs. That graph appeared in Parker Pages a few years ago. It is based on measurements of bores of guns with .810 chambers, made with a Stan Baker Bore gauge. It represents mostly my own Parkers; I had many more measurements but did not "busy up" the plot. The measurements were made in a similar way as those of the Super Fox in the DGJ article.
I spent a pleasant day with TSP, reviewing King's work, and bore measurements. I can only conclude that King's tooling used from around s/n 7000 to 70000 bored .750+/- twelve gauge bores. Also, 11 gauge guns are no longer listed in catalogs and price lists after 1872.
I will write a summary of this for Parker Pages.
Best, Austin
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