Element-Proof Field/Ammo Large is Plano's largest ammo box, with an interior sized to hold .50 cal ammo or up to 6 boxes of shot shells. It offers additional storage in a top-access compartment embedded in the lid. This makes the large field box a perfect store all whether you plan to use it at the range or at home. Whatever you put inside, rest assured it will all stay free of water or dust thanks to a water-resistant and dependable brass-bailed latch.