i'm new tho the forum,but have in the past,got a lot of good info from you guys,my problem right now is my old savage rifle has areas where the barrel has lost its blue.while i know that cold blue isn't the best,i just did my really old remington model 11 and it looks great.I had to heat up the barrel and repeat many times,but finally ,it worked pretty good.the savage barrel dosen' seem to react at all to the bluing at all ,am using birchwood super blue,,thanks in advance for any help.tom