Toughnut, I refrain from shooting my new blued guns because they are so beautuful. Some I don't shoot at all. I shoot my stainless guns without concern.
Most stainless steels are alloys, and many are designed spacifically for their application. I have on my desk a stainless steel blade from a GE J-47 jet engine. It is 55 years old and is very magnetic, because it has carbon steel as part of the alloy. Pure stainless, if there is such a thing, wouldn't have survived the temperatures. GE is/was a leader in alloy developement