Had my ak47 out with an acquaintance today. He said it was a cool rifle and is more accurate than he thought it would be. Then he threw me for a loop and said, " The cool thing about them is they could use our ammo in the AK47, but we could not use AK47 ammo in our rifles."
I don't know of any US/NATO ammo that is safe to use in place of 7.62X39. Correct me if I am wrong, but this kind of stuff drives me batty.