Kinda accurately shooting introduction. The AK tends to jump to upper-left of the aimed point, so aim at a little lower-right should do the trick.
On the other hand, AK-47 is considered one of the most dangerous gun one could handle. That why those terrorist groups tend to buy AK47 instead of some American guns dated back to Pig Bay or WW2(with the same price). Even the current standard gun of US army is slightly lower than AK in term of rust- and sand-resistant.
I, for once, have seen a guy shot (at firing range) from 500+m using AK-47 and still hit the head with just 3 shot. He was my teacher