I have 1511 rounds of steel cased 7.62x39 available. 640 of them are sealed Russian surplus and the rest is loose Wolf performance in an ammo crate.
Entire lot, 1511rds: $0.40/rd .......... $600
Russian spam-can, 640rds: $0.44/rd ..... $280
Wolf, 870rds: $0.48/rd ................. $420