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California's Central Coast Amid The Insanity
About 40-years-ago, I bought a tin of Nevr-Dull. It's cotton wadding that has been impregnated with mystery liquid and chemicals, and I use it to clean the discoloration from the front face of stainless steel revolver cylinders. It's quite spiffy stuff.
Haven't tried it on blued steel, for fear of removing it.
Haven't tried it on blued steel, for fear of removing it.