Jim,
Thanks for all of that info. Much appreciated!
The idea of polishing a blued ejector-rod housing brings back the wacko exchange I had during a failed negotiation to buy a stainless - or blued - Bearcat. The seller was a Porn - um Pawn store, so this might be understandable:
I was told at first that the piece was stainless, but had been blued (!), then was told that it was actually a blued revolver that had been polished. I suggested the listing description of "stainless" was inaccurate in that case, inasmuch as blued steel doesn't become stainless when it's polished! At that point the vendor insisted it was actually a stainless steel Bearcat. Right!
Isn't that what bluing is all about - to control oxidation? So, if a blued ejector-rod is polished it becomes naked non-stainless steel, and I would expect it to rust. Am I missing something (besides an educational background in metallurgy)?