I shoot a lot of Wolf in my SKS, and I've never had any misfires or other problems with it, only that it's incredibly dirty and it has steel cases and is berdan primed (both make the cases incapable of being reloaded by most rollers). I've never noticed mine getting nasty from the wolfs, definately not at the accelerated rate that many other surplus ammos would give, but then again, I clean mine before I leave the bench.

To get an SKS to perform well, a guy really needs to roll his own, which is slightly problematic since it throws the cases so far, but I custom stitched a bag that fits around the action to collect them. Another option to get cheap ammo to go to the range is to roll your own, but for general plinking, wolfs are ok, just clean it before you leave the range.

Screw the 10 ring, keep them in the zero!!!