On line with Bobby's question, I have an field grade Ithaca someone did a whole lot of very fancy engraving on and then, I think, blued. I suspect it was annealed to allow for all the engraving and that it was never re-cased since it was blued.

How can I tell if it was re-cased? For whatever its worth to Bobby, I've been shooting the gun with Bismuth Classic which I don't think is particularly low pressure and have not noticed any problems...Geo