i think u can shoot just about any public hunting land,as long as its at a clearly identifiable artificially constructed target,and there is no attempt to take game,thats what i heard from a few DNR range officers near bath.
its what ive been doing since they told me,but i keep a valid small game permit anyways,so that even if they do say there is an attempt to take game,it simply transfers over from target shooting to small game hunting,which is year round for some species.