At the risk of repeating myself wink or possibly clarifying: Questions 1 through 9 should be what is the minimal wall thickness at the end of the chamber, the forcing cone, and every inch out to 9-12" of my barrels; information that Adam as yet does not have. I've seen dealers quickly run a pin gauge down one side (the thick side) of a barrel, announce the MWT as ___, and pronounce the barrels as "fine". That information is next to meaningless unless the dealer says "oops, the wall thickness at 6 inches is .030".
And I am of the opinion that in the absence of cracks in the head of the stock, any vintage gun with adequate wall thickness and tight lock-up can handle 1 oz. at 1200 fps target loads. Even better for boxlocks and farm implement Smiths if the head of the stock has been glasbedded.

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