you might want to check out the new Ruger American in .22. I just got one a week ago and it is one sweet little plinker. It has an adjustable trigger and is more accurate than I am. Have a goodun!!!!
Anschutz, not sure if I spelled that right. They are fairly expensive but are supposed to be very accurate.
I'm gonna stop you right there, you just said an AR-15 is a high-powered rifle. It is obvious you don't know anything about guns and I shall ignore anything you say from this point on.