PSA is selling M855 for about .59 cents per round.
Lake City XM855 5.56x45 62gr 1000rd Bulk Package XM855CS
In stock
$ 599.99
$ 579.99
SKU: 759
UPC: 029465065010
MFR#: XM855CS
Lake XM855 5.56 62gr, LC Headstamp with NATO cross.
1,000rds loose packed to a case