Low Key, Never had a problem with the revolvers and I have carried them in some really cold and damp weather. If I'm out in the rain all day or right after and it's really hummid out then I just shoot out the cylinders and clean up and reload when I get home.
Kevin's idea about the nipple pick is very true and a good idea just to be on the safe side. When I hunt with my longrifles the cold damp days seem to do a job on the barrels and powder. One thing that helps is to seal around the caps with wax or even a little lube. We used to place condoms over the barrels to keep out the moister. It works and you can shoot right through them
They make little finger ones that you could use over the barrel of the revolver if you wanted to. Don't know what there really for and don't want to know
