let us face it, there are many very accurate 22's out there; anything marlin , savage, the Toz rifles, now also called winchester wilcats, BB's are very good, and yes the cz , with it's set trigger is fan freakin tastic. Remmington i wonder about , i have not shot their new models, nor do i know anyone who has, and let us not forget Browning, with its killer new flush fit figure 8 mags, but both these will be over 300 bucks. As long as you stay away from ruger, you should be allright.
As far as scopes are concerned , if you get a shepperd scope, get one made for 22lr caliber rounds, and you can take 300 and even 400 yd shots with them, but they will cost you a couple of bucks, though.