Thanks again Jim and Rocketman. I understand all of that. The thing I don't understand is few have said gun was either honed or backbored. My reasoning is that if that were so, the bores would be larger not smaller.
This is what I have come up with since the last post. Using plug gages, right barrel from breech; Left barrel from breech:
.727 in 5" .727 in 10"
.726 in 9" .726 in 24"
.724 in 22 15/16" .724 in 24 15 /16"
.722 in 25" .722 in 25"
.717 in 27 1/16" .717 in 25 7/8"
Wall thickness (using gage hanging from ceiling and rotating barrel from top rib to bottom rib.
right barrel left barrel
9" .038-.042 9" .040-.045
11" .032-.032 11" .038-.040
13" .028-.032 13" .030-.035
15" .030-.035 15" .028-.032
17" .030-.035 17" .027-.032
Barrels again are 28" long, and have not been cut.
Last edited by JDW; 10/01/10 12:58 PM. Reason: format not the same