This is 7.62x51 M80 149 gr ball ammo manufactured at the Lake City plant, which produces ammo for the U.S. military. This ammo was purchased as loose brass and stored in ammo cans in my climate controlled house.
Picture of the headstamp and all the ammo sorted are attached, so you know exactly what you are getting.
I have 1000 rounds total. I will sell in two lots of 500 or one lot of 1000, but at this time I'm not breaking down into smaller quantities. The cost is 70 cents per round, and in today's environment you will not find such high quality ammo anywhere near this price.
So, that's 500 rds for $350, or 1000 for $700. Note: I am not selling the ammo cans. I'll put these in boxes, or bring your own ammo cans.