Has he shot other ammo previously with success? One thing to remember about Communist Bloc rifles that have been sitting in some warehouse for years is that "new" and "clean" don't necessarily mean ready to shoot. A field strip and full cleaning before embarking on the gun's new life is always a good idea. I learned this the hard way when I had some failures using DAG surplus ammo in my Saiga without doing a thorough cleaning since I figured the gun was brand new and wouldn't need it.
1944 Mauser byf K98 8mm, K31 7.5 x 55 Swiss, Rem M700 Classic 8mm, 1920s Colt New Service .45 LC, Browning Hi-Power and HK P7 in 9mm, SAIGA .308 22", SKS 7.62x39mm, S&W 686 Plus 6" and Taurus 617 2" in .357 Mag, Ruger MkIII Target 5.5" BB .22LR, Mossberg 500 & Marlin 120 in 12 GA, etc.