No scope needed if you make a plinking target like I did for Karen's dad:
http://www.tinyisland.com/images/Target.jpg

He's shot hundreds of rounds at it and it still looks basically like that. The
target is cut from 3/16" A26 plate, and everything else is just mild steel
scrap. The backplate is 1/8" thick, and angled to deflect everything down. If
you hit something, it swings so you can see where you hit. Not good for 1/8"
resolution, though ..

GWE