I'm screwed / stuck with it. Bought it used off another site. I am going to rechamber it to 6mm Beggs. Since it was a 6BR I had to cut off the entire chamber.
Here is the last email I got from the guy that chambered it:
heartburn! I went back to the Itrader feedback you gave on 07-01-2008, it says "accurate description". I have looked at and re-looked at those 2 pictures. Just as I told you on the phone, I only want to do the right thing. I was totally honest in the description of the used barrel that I sold you. You told me on the phone that you had run a patch down the barrel and it was clean. I told you that after I cleaned the barrel before shipping it to you that I looked down the barrel. I did. I was confident that what I was selling was a good clean used barrel. I still believe that! It seems that you would have be able to see into the chamber while it was in your lathe. But that's another part of the deal that has me confused; you did some lathe work on the barrel and modified it. It would seem that you had to clean any chips or residue after you finished the work. I'm confused by how you missed what is pretty easy to see by the picture. I still have a couple of casings from that chamber. I went right away and took a very close look at them, they are absolutely perfect! No marks as should be left from gouging. Also, in the picture of the muzzle, I do see a spot, but I also see alot of copper fouling. My point is that I am making no accusations against you. But you have had the barrel for a month! You have had inspection, and given positive feed back. You have modified the barrel to fit your conversion. You have shot it about 50 times. So I can not give you the money back on the barrel. I know that I sent you a fine used barrel.