I don't like storing guns inside cases because these have the unfortunate tendancy to attract and trap condensation which can cause your guns to rust in the case so you could get a nasty suprise when you open up your case.

I would store them in a cool dry area out of direct sunlight like a closet or a safe. Just wipe them down lightly with oil and you won't have anything to worry about. Same thing goes with your bore as I said above.