I store them in an open, wooden guncabinet and all the actions are open and I even have some of those moisture obsorbing packets in there. I think ill move my gun cabinet and put a dehumidifier in the room and keep the door shut.

i am buying a ml cost 500 buck plus my shotgun soon will be getting a high power rifle for target shooting

i am going to add a steel entry door to my closet on my room
it is about 6 by 6 and turn it into my gun room must my clothes lay in my dresser
any way
i will be going with a DEHUMIDIFIER

like others said out of the case open the action and let them air out
i have heard the cases hold and absorb moisture

If all you have in the cabinet is some of the moisture absorbing packets your in bad shape. Spend $10 and buy yourself a large box of hydrosorbent silica gel that can be recharged in your oven. The box I have has lasted two years in my safe which is in my bedroom closet. When I had the small little metal canister I had to recharge it every year.

D A M P R I D - The Original Non-Electric Moisture Absorber

Turn up the air conditioning!

I haven't ran into anything that protects guns against rust better than RIG. I use2 rechargable de-humidifiers made by Remington im my safes that seem to work very well but I live right on the coast in deep south MS and if you look up humidity in the dicitonary there is a pictureof where we live above the definition, so I keep a good coating of RIG on all of my guns also and I don't have a rust problem at all.