My .22 cz 455 is accurate with whatever I feed it. For the bulk of its life it was fed white box winchester specials from walmart.
For the longer ranges I use cci mini mags but for everyday plinking I use whatevers cheap and readily available.
Starting on a 22 is a great way to get into shooting and wont break the bank. I would suggest forking over a bit more for a bolt action 22 like the savage. Its alot more fun going through the motions over a semi auto plus you can feed it a variety of 22 ammo like the cb shorts and cci shotshells