Since I didn't see anything about it in the 80 yard thread or this one, might I ask what kind of shooting postion you were using along with what kind of support (if any). It doesn't seem from the made up targets that you were shooting at a club, where heavy benches and rests could be assumed to be the norm. Similarly, you could tell alot more from these five round groups than the 25 rounds you shot on a single sheet in the earlier thread, mainly since you'd want to avoid as much as possible from moving the rifle or your hold/grip/cheekweld of it through an entire group. That's practically impossible with five reloads!
While I don't want to claim spectacular accuracy with these rifles, which can also vary widely from specimen to specimen, I'd suggest that a very snugly supported rifle, zeroed in and fired slowly, should tighten up those groups. From my own experience, your groups look alot like what I'd get shooting the rifle from sitting (butt on the ground, elbows on the knees) either unsupported or with a shooting stick at 100m. If I take my time, I'd get all of my standing shots on the paper at 100m, which is still ample range for bush hunting.
At 200m shooting from a bench, I find it hard enough to get between three and four shots out of five on target, though the sights certainly make it hard enough to see the target at that distance. While I'd use other rifles for hunting at that distance, the SKS should be fine for offhand shooting out to 100m. I doubt most people would shoot much differently with a 30.30 levergun, which is essentially what the SKS is replacing.
Cheers,
Frank