I take it you have a .22 WMR based on your screen name. Don't underestimate the .22 Mag especially in the Hornady 30gr V-Max bullets going 2200 fps. I have a Ruger 10/22M with a magnum research carbon fiber barrel. I guarantee it would stop or slow down an intruder. Put 10 of those puppies in a zombie and it'll give you an excellent advantage over the undead. Then you can use your scrapyard to finish them off.
