Haven't actually shot groups @ 100 yards with it but used to be able hit "gong" style targets regularly at that distance. It's not a tack driver but a niche rifle, light ,handy and there when a longer, heavier rifle is left home .
To help with accuracy make sure you assemble it the same way each time. ie. maybe score a mark on barrel and receiver to match up when assembled and tighten barrell ring(or nut or whatever you call it) exactly the same each time. Mine (son's now) has a cheap red dot sight on it...it works fine...