I called yesterday since it's been awhile. There not giving me another new (S/N) gun, most of their in factory stock has the same defect. The second gun is in the machine shop, they are fitting it to a new barrel.
I'll call back in another week or so to see whats happening.
Did they tell you what caused the defect? I had to go look at the bore in my 220 when I read this but it's smooth and shiny. Almost looks like it's in the raw material for the barrel