My old CZ858 did the same as my Russian SKS's.
About a small dinner plate at 100 meters.
I never personally saw anyone with an 858 do much better with it using surplus ammo.
The only thing a man will ever exaggerate more than his #### size are his group averages on internet gun forums....
hahaha thats a great one liner!
So would you peg the group size at around 6MOA?