Brownells cold blue is pretty decent. It's wipe on and buff, more or less.I have a full length on the way. 13 1/8” is the desired length. Gonna chop it and get my uncle to teach me to use his lathe. Then I guess I’ll try my hand at blueing the end. Also trying to figure out what to do about the top cover. Bubba was running rampant on this old girl. Gotta take that scope rail and either weld up the holes, put rivets in it, or just get a new cover.