Dave - smartdog,
Wow! that barrel is splendid, certainly. I wish mine would look that nice. I only applied several coats of straight muriatic acid, which resulted in a well defined but only grey colored barrel. How do I do an "acid rust brown"? If, on my barrel, the dark grey twists would turn a vivid brown, that would be great. I have viewed the online video from Midway USA where an old twist iron double barrel is finished. The process to me looks rather expensive, complicated and even frightening! I tried a gentle acid treatment followed by cold blue - that did not work.
Can you direct me to the acid rust brown process, I want to learn.
Jim
