Pallet of 5.56 M855 NEW NATO Ammunition, 54,000 rd : Rifle Ammunition at GunBroker.com
37.5 cents per round of Danish M855. I'd say 54,000 rounds would constitute a lifetime supply for most shooters.
Almost 2200 lbs.......I can only imagine what shipping would be.
I have a feeling there might be better deals available on bulk purchases...
Who's up for a group buy?