Quote Originally Posted by nun2sharp View Post
FWIW, when I was in the military it was considered incorrect to use WD-40 on weapons. The reason being is that after the propellent evaporated a loose film was left to dry on the metal that allowed moisture/humidity between the film and the metal, trapping the moisture next to the metal. So the proper lubricant was the order of the day. May be wrong, I cant prove it one way or the other, its just whats been beaten into my head over the years.
I definately agree. When I was in the AirForce I maintained all sorts of weapons both aircraft and ground, rifles, pistols, automatic weapons, etc. Anyone that brought WD40 into the shop was beat about the head and shoulders. It works great for removing stuck bolts but doesnt help with rust protection. I have had to clean rust off things "protected" by WD40. What we used was CLP or Break Free.

Bob