From The Survivalist Blog, with the most interesting (to me, anyway) part being the 100 yard accuracy testing.
The next day, I went back to the range for accuracy testing at 100 yards. I have to say for an AK type rifle I was impressed with the performance of both the rifle and the 5.45×39 round. Groups at this distance were consistent at 2-3 inches.
That accuracy was achieved with cheap mil-surp ammo; I would imagine that upgrading your ammo would result in an increase in accuracy. That being said, the whole appeal of these guns is that 1) they’re relatively cost effective, with the Bulgarian model running around $450. The only major issue I would have with these rifles is sourcing not ammo, but rather magazines. For a decent fighting rifle you should have a pile of magazines, and the 5.45 Ruskie mags are a bit harder to find that the usual AK 7.62 magazines.