I'm looking for a scope for my 22 rifle and sadly I've never had to buy a scope before, so I'm not real sure what to look for. The rifle is a Mossberg 352KD .22LR, semi-auto; manufactured between '68-'71 (if that matters). It is primarily for rodent control, target shooting, teaching the kids, popping zombie heads, etc. No major hunting plans for it, just a basic home/range use weapon. Not sure what pricing range I'll be looking at, but hoping to stay in the $100-$150 range (preferably less, if available). Any suggestions?