have a chance to buy one of these in 22cal new for $159. is this a fair deal or not. will this air rifle kill squirrel an rabitts[cotontail] out to say 40yds i know they spout 8or900 fps.just what do i need to do this. are thy accurate enough. give me the good & the bad guy's need some input here. am champing at the bit here.i kind of think it is a good deal but dont know for sure.thanks
ken s