Hello Frank,
I did one a few years ago and had the same issue to deal with but instead of striking the stamp off and compromise bbl thickness, I filled/tig welded the stamp over and engraved something more subtle where the stamp used to be and the word fox on the bottom of the frame, if you look at the first picture, you can faintly see the weld, once rust blued it blended in perfectly.... I thought it looked pretty nice
Claudio

Just for the record this is post "Two" of this thread. Post one asked how to deal with
the "Sterlingworth Fluid Compressed Steel" barrel legend to make the barrel look more pleasing.
My original statement was made purely on these two posts. Now I have been accused to being "Hasty" at jumping to conclusions. I simply took a man at his word when he stated ""I filled/tig welded the stamp over and engraved something more subtle where the stamp used to be "".
Now based on these two posts, I believe anyone with an open honest mind would have to agree I would have been some kind of Idiot to arrive at any other conclusion than I did, IE one stamp was filled, another substituted. It is also noted that ""if you look at the first picture, you can faintly see the weld"" That 1st picture is no longer there. I did look at that picture & as I recall in that Faint Weld, the word Sterlingworth could be made out. I didn't see Krupp.
Now please understand, I am not saying the gun did not have the double stamp, only that I based my statement on what evidence had been given. Given the same list of what I "Took to be Facts", I would likely make a similar statement again.