On the picture showing the chamber, what happened to the rest of the metal to where it shows nothing and then shows that area twice the thickness.
It looks like whomever did the chamber lengthening, really screwed up by not centering the cutter to the bore. And why would you take anything out that close to the breech when that dimension should have been ok.
All chambers were .014 in 2 3/4". The forcing cone is 1/2" then to bore which for that year would be .650
If this gun was sent from the factory with 2 3/4" chambers it would have 2 3/4 Inches in an oval circle on the right barrel flat. With the way that chamber looks, that was not done at the factory.
Brother Drew, when you get those barrels I would measure the chamber diameter in the left barrel and it should be .745.
Unless I am missing something, that chamber was egg shaped before this happened.
