Ermac: There really isnt much differance in the ammo you buy today here in the U.S. for accuracy, unless you spend the $$$ for the more unusual AK ammo. The Russian commercial ammo you get here is made for blasting away, and price point. Of course each different AK will yeild different results, but as a rule most of the 7.62x39 is made to sell and shoot away.
You have a legitimate question, and AKs were not really designed for accuracy to start with. They do their job with a different approach than
the AR platforms.