Go to a gun shop and buy a can of Eezox. It dries very quickly, but still lubricates and it will protect the gun forever. However, with a shotgun, if it’s been oiled, not used and kept in a case it should be fine for a long time.
I'd like to thank all you folks who chimed in.
And for all of you’s who didn't: SHAME ON YOU!!! A vanity on guns. This shoulda been run up over 100 responses by now. And if I'd posted this during work hours on a weekday, is surely would've.
Weekend FReepers, a breed apart, and not in a good way.