I think i found a reason
My gun safe sits in my basement. Many years I had no rust problems. BUT THEN! I thought I should buy some descant (sp) I found that they filled with moisture and when full seemed to loose an acid? of something that
really got my attention big time I removed both of them and have had no problems since. I believe that when full they actually create a chemical that
made my guns rust big time.
I'm pretty sure they were the probelm