Well, there's to be expected back and forth snarkiness but what comes across is some real expertise on this board. I personally find this thread fascinating in two ways and would like to see it expanded:
1I. I'd love to see a youtube video on fitting orphaned barrels...and how it's done. I once found an incredibly interesting video featuring an 80 year old British gun master tightening up and putting on face an old gun...using hammers, vise, file and a smoke lamp.
https://www.youtube.com/watch?v=8EqfxRugPVwand 2) the whole subject of the science of case coloring is unknown to me (ok I've watched youtube videos of firing the whole action but restoring case colors is another subject - you all have mentioned "arsenic" etc.). I once started a thread on a Saint Etienne gun I was interested in with what I thought might be redone case colors and was challenged as to what an early 20th century French gun's colors actually looked like. I've been compiling a library ever since.
http://www.doublegunshop.com/forums/ubbt...9546#Post489546