So I have a few rifles that are stainless steel and despite taking great care of them once in a while I find real light specs of surface rust. So I remembered reading about this passivation process and started digging into it. It seems to be a pretty simple process and am planning on doing it to my rifles. The questions I have are; have any of you done this on your rifles? How did you go about it, what was your process? Most importantly did/would you do it to the inside of the barrel and action?