Thanks, Chuck. My info came from another board where the poster (a retired gunsmith) claimed that the secret was drilling holes(soldered-up, afterwards) in the muzzle spacers to allowing full length and vigorous flushing of the rib cavities after bluing along with using Brownells bleed-out neutralizer in the flush water. He alledges that he used the technique many times in his long career and never had a failure of the joints on a well made double due to solder corrosion. I supposed it is possible, but I have no experience with it.
OB
