I have always wondered about mine. I have a yugo that was unissued so the bore is minty. When I first cleaned it up it was shooting 6 or 8 MOA , possibly 5 with win white but I was straining with the sights (53 YO eyes!)
I mounted a Lyman peep but have only shot it on a casual basis since then.
I need to get a bunch of ammos and go for some groups with the bayo open and closed from prone and see where I am at .
I have not got around to it because I intended to have somebody do some work on the trigger which is quite rough.
A buddy has an ugly Russian or Chinese that his dad bought years back for $59 .
Bore is poor looking , stock is fairly solid but a mess of patches and dings , but the trigger is actually pretty good . I can shoot it noticeably better than my gun even with the crummy issue sights . I offered a trade which my bud would have jumped for but for the family connection .
Worse SKS I ever shot was still better by half than the POS Ruger Ranch that I bought factory new and dumped a pile of money into .