600 M-1 .30 cal rounds
If you list them where Unclinick showed you also note the manufacture and date on the bottom of the case, LC= Lake City. And date should be 2 numbers.
If its pre 50’s it might be corrosive primers and they will bring a lot less.
This summer I picked up 600, 30-06 with end block in the same green bag for 60$. All of them were in good shape but the date was 44 and 46.
I will be using for reloading. Pull the bullets. Remove the primers and start over.
"The difference between stupidity and genius is that genius has its limits" Albert Einstine