long story short. bad divorce 3 years ago and i had to put stuff in storage. thought it would be a couple months.... i just pulled it out after 3 years. it was climate controlled (though i dont know what temps) the bulk of my ammo was in that unit. mostly in ammo cans (though not all of it) but nothing was placed in the ammo cans to control humidity (i am in Florida, fyi). i have no idea what the shelf life for ammo is. secondly, i had 2 ammo cans that were actually in my parents garage (not climate controlled) that i didnt even know were there (I thought it was all in storage). so my question also pertains to 2 ammo cans that were not climate controlled for 3 years. we are talking rifle ammo, pistol ammo, shotgun, and .22 safe to shoot? safe to trust to go bang? i really hope i didnt ruin it. a good penny worth and we all know the current ammo situation. I had to sell most (but not all) of my firearms at the time do to the situation and am trying to really get back into the hobby i enjoy.