Thanks to all for the tips. Learn something every time I log on. Like some I started with the silica packs, used what amounts to a rechargeable silica pack in a nice container you can get for the safe, then just broke down and had a dehumidifier installed. It also has an AC/Heater function. The suggestions on temp and humidity level were especially welcome. Living in a hot and humid area is great for the sun tan but maybe not so good for the weapons/ammo. Gonna give that 70/50 temp/hum thing a shot, so to speak.