Plano brands plastic olive drab ammo can or utility container.
Popular containers for sport shooters, gun enthusiasts, hunters and survivalists. These water tight containers are great for storing anything that fits.
Many people carry their firearms and ammo to the range in these boxes. Large enough to carry a couple firearms, ammo and hearing protection, safety glasses etc.
If you are filming anyone in any of the aforementioned scenarios, you probably need one of these boxes.
We also have metal 50 caliber ammo cans, but they are usually used for military scenes and hardcore gun owners, survivalists and application more directly tied to military or militia as opposed to sporting guns or concealed carry.