I know you said SKS, and Ive had a few but always wanted a bolt action, bought a Ruger American and played with some hand loads and this is what I cam e up with.
Milsurp ammo, I've gotten as good as ~1.25moa but most is around 1.5-2 moa at 100. Smacking steel 12" steel plates at 4 & 5 hundred fun and fairly easy as long as your ES isnt to bad. The above hand load makes it childs play. Oh, it takes Mini-Thirty mags too.