Followup on the gun. I took my Skeets bore gauge down to the LGS and found 2 1/2 " chambers and bores of .737 R and .734 L. Chokes started at 3 1/2 inches from the muzzles and measured .707 R (30 pts)and .696 L (40 pts). I was surprised because based on my quick earlier look, the wall thickness on the right barrel at the muzzle appeared to be only 20 thousandths or so, like an IC barrel would look. Left appeared "normal". I wrongly assumed that the right barrel was more open than it measured. I did not take the time or trouble to use my Manson gauge to check barrel wall thicknesses.
My thought is that there is a high likelihood the barrels have been reamed or honed from .729 to .734 and .737 and given the fact that these are 1 1/2 frame barrels with relatively thin walls to begin with, probably not something I would want to own. I suppose there is an outside chance they left the factory that way, but by 1918 I think the factory bore dimensions were pretty well locked in. An contrary thoughts? I have no interest in the gun anymore.
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