Re: 20 gauge 00 Archived Message Posted by David W on June 2, 2008, 7:31 am, in reply to "Re: 20 gauge 00 " Nothing is as good as rust blueing, but to go over what you have and touch up the barrels, Brownell's Oxpho Blue or Formula 44/40 are good. Message Thread: 20 gauge 00 - Bob June 1, 2008, 8:00 pm Re: 20 gauge 00 - David W June 1, 2008, 8:16 pm Re: 20 gauge 00 - Bob June 1, 2008, 8:26 pm Re: 20 gauge 00 - David W June 2, 2008, 7:31 am   Searching