[NWPilgrim]

I don't see why ammo would need to be locked up. It is not going to do anything by itself. We never had an issue with our kids, or when I was a kid, by having ammo stacked on shelves or in unlocked cabinets. I have way more ammo than would fit in even a large safe or two. I have one HD shelving unit loaded with ammo cans of ammo and components and more ammo boxes on another shelving unit and a couple of cabinets. I keep some HD ammo with the guns but all the range and reserve ammo, and components are on the open shelves.