Currently I'm looking at ammo , no matter what caliber, as an investment . Recalling the death of .22 a few years ago ,though I've only been storing it not shooting it , the price was going up like silver stock . Problem of course gun shops don't buy back ammo, so it's value is only among private sales. I don't even know of any one that sells privately ,and there are laws that make it illegal in some places. What would justify using ammo as a trade media ?