Your choice is fine but 7X at the top is probably not required for only 100 yards. I'd put a fixed power scope on it with nothing higher than a 4 X. These are generally brighter, have ample Eye Relief and less "internals" (more durable). A Weaver 4x38 Classic K would be nice, and goes for around $135.00 @ S.W.F.A. You may also find a used Leupy or a Sightron SII 4X. Also, check the Samplelist @ S.W.F.A. for used and demo scopes. Good luck.