Quote:
Originally Posted by gunnertwo
I would say it depends on the type of oil used.
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I'd say you're right. I have seen some guns with old oil or grease that looked like brown, sun dried pine sap, while others (like my Roth-Steyr) have had perfectly good factory grease in them. I'm not sure how long it would take for "bad" lubricants to harden, but I have seen it in many guns from as late as the '70s.