Parsons, Probably you are right about the slogan, it could make us gazillionares (no doubt). I repeat myself by saying "rust blue is the gun metal finish of The Gods" The ones I have are somewhere around such very dark charcoal color that in other than bright daylight, they look black but not as flat as bead blasted/hot tanked is and nowhere as shiny as high polish blue either. With the word "rust" in it, one would think such a finish would be at risk in wet weather but I am happy to report that, it resists oxidation better than regular bluing by a noticeable margin. But no doubt in your schooling, you already know more about that subject than most of us ever will. Again, I am envious that you are able to build proper Mausers. Alas, most of us have to pay someone else to build them for us. Cheers, YouKnowWhoWithNaughtyInitials, teeheeheee.