So you are saying it should be at least .045 9 inches from the from the breech and .025 at the thinest.I am assuming when someone post the minimum it could be anywhere.
I talked to Kurt Marrington today about the gun and gave him the same info as I gave you and he said it would be fine but maybe I left something out.I'll have to get my figures correct where it is .025 but it only would have started out as .729 bore and now is .733 and .737.
Yes, .045" 9" from the breech. Also, take heed to what blue grouse is saying above.
The specs at present do not suggest it was born at .728" bores. It could have been only .721" and still been proofed .729".
More likely it was a 13/1 proof around .710" originally.
Put bluntly, It is missing .020"-.030" of metal at 9" from the breech that should still be there. Now you figure out where It went. Honed away inside? Polished and filed off outside? Both? I definitely wouldn't shoot it.