Okay, the suspense got to me. I have a GHE Damascus that has also been nitro-proofed and hunted extensively by its previous guardian and for a few trips last year by me. I could not come up with any area along the length of either barrel with BWT less than .030". She's a vg condition shooter and a keeper
Any eccentricity likely resides between this shooters ears
and not in these barrels
Cheers
Jack