Thanks, everyone...
Dave..., I’m really glad you chimed in, thanks. I suspect what your talking about with the copper tube will be the ticket! I believe it was Jerry H. who posted a woodcutting from Europe showing rifles being blued in what looked like a pizza oven. It showed the barrels sitting on a sheet of something (probably copper) during the process. I can’t wait to see your results, so pleas make sure you share!
Jim..., thanks, and I’m thinking you’ll be doing something spectacular once again!...
Joel..., thanks, yes, I’ve seen this “lip” on original pieces, both English and Continental Europe.
Thanks again!
Ed