Guys, thanks for the condolences, and Chuck thanks for the suggestions.
Yeah, rainwated equals rust, unfortunatly.
My friend and I were shooting, and it was a hot & humid day, but what I think REALLY killed us was the fact that the foam liner in the SKB case got wet. I tried to dry it out with a towel as best I could, but I obviously didnt' get it all, and the guns had to go back into the case for the better part of 24 hours.
I tried to buy some time by wrapping the guns in plastic bags, but it obviously wasn't enough. I should have oiled them then and there, but thought I could get by.
The only saving grace?
My new Model 24 wasn't affected.