Just FYI Sportsmans guide has Barnaul 7.62x39 HP for 299.97 for 1000 rnds. Cheaper if you are part of their members club and they usually have coupons floating around. I bought some of this last year when it was around $0.20 rnd and it is pretty good stuff.
240 Rds. 123 - Gr. 7.62x39 Hp Ammo, Rifle Ammunition, Barnaul at Sportsman's Guide
240 Rds. 123 - Gr. 7.62x39 Hp Ammo, Rifle Ammunition, Barnaul at Sportsman's Guide