Certainly not- thanks for correcting this oversight-I went back and re-wrote what I meant to say. As a retired power plant welder, I am very familar with Magna Flux- as far as a TIG weld in that area, unless I saw the barrels, I might wonder how to access the torch and non-consumable tungsten electrode into the chamber- if it could be welded from the bottom of the barrel flat into the chamber, without distortion and putting the chamber out of round, then maybe it is repairable. Kirk Merrington is the best barrel man in the USA, IMO. I'd get his opinion. Just curious, if any other Browning Superposed shooters that reload on this website have experienced the minor rusting, especially with Winchester AA hulls??