I gave my rusty old barrel a vinegar bath over night and sanded it with 320 and 400 grit sandpaper. I then put a coat of Oxpho blue on the barrels and buffed off the top coat off with 600 grit sandpaper till the only bluing that was left was in the domascus lines. I then wiped it down with Lind seed oil. You should have seen all the rust that came off of the barrels when I wet sanded it after an hour of soaking in vinegar. I used a 4’ 3” PVC tube caped off on one end for the vinegar bath. I think it turned out nice. You can see the domascus pattern clearly now with all the dark blotchy rust spots removed. Sure looks a lot better to me!
A faux case hardened the receiver with Oxpho blue...
Before....after I cleaned and polished the solid rusted receiver, had new hammers installed, but left the barrel as is.
I’m stripping the wood as we speak and steaming out dents.