I recently (finally) picked up some 7.62x39 stripper clips for my SKS. I keep having an issue when loading the magazine. I place the stripper into the stripper clip guide on the charging handle and press the rounds into the magazine. Each time I do this, it stops going in after 8 rounds, leaving 2 rounds on the stripper clip. I have tried 10 different clips, 2 different magazines and 3 different types of ammo. I see no obstructions in the receiver. Ammo: TulAmmo Winchester white box Russian surplus. Magazines: Tapco 20 round Tapco 10 round , both with plastic followers. Any suggestions? Solutions? Similar problems?