Here goes

[sdmc530]

All my ammo goes in MTM cases and in a cupboard up high. No issues with moisture really here in SD but I do keep the gun room temp and humidity controlled. Same with reloading supplies. In original containers in a cool dark dry cupboard. Never had an issue yet thank goodness. If it’s not reloaded ammo it stays in the factory box but I don’t have much new ammo around. That is pretty rare these days.