Sorry for "****", but i never meant something bad...just saying the facts...
They already have the proof - the AK-74(not 47!).
Anyway, the reliability vs accuracy is one single most discussed subject in the military all over the world. And finding good trade off between them is one heck of a job. Accuracy without reliability(especially in close combat/jungle/desert) worth nothing, and very reliable gun that cant hit shi..err..nothing is also bad.
Also, Russians have developed new assault rifle, AN-94 "Abakan". It has great accuracy in semi and auto mode(in semi mode abakan shoots 2 bullets very fast, second bullet is shot before barrel is retracted, so you get the same recoil while shooting one bullet). It also has some nice engineering feats. But, its less reliable than AK and more complicated. Still, its more reliable than M16/M4, and is believed to be more accurate. But as I said, many weapons look great on sheets and tests, and work bad in battles. Some of the soldiers who tested this rifle, say that theyll stick with good old AK. Well just have to wait and see the new guns in action.
More info here:
http://club.guns.ru/eng/abakan.html