Bonus picture. As part of the bedroom redesign, we built a new closet system. One was assigned to me so ammo wouldn’t be hidden behind the shoes and etc of our closet.
The shelves are a about 24”x24” and can hold three full 50 cal ammo cans. The shelves are designed to handle 200 pounds each.

Shelves of ammo.

All of my range bags and miscellaneous stuff fit too.