I've hit 4'' clays at 400y with my 7.62 x39 vz. I shoot over 200y all the time.
Sure, and I've hit 4'' ballons with a 30-30 with 165gr FP cast bullet and 8gr of bluedot at 200m, does that mean it has good ballistics?
I just don't understand the tunnel vision some gun owners have and why some red rifle owner need to pull the fudd attitude of telling you what you should own or how you should shoot your rifle. There's nothing wrong with a VZ58 in 223/5.56, it has its place.