[Holleta]

I think a big reason why people choose pistol calibers in rifles is for caliber consolodation....not ballistic performance. With that said, a 9mm in a rifle/carbine will do just fine for what you are looking to do. I do think that your CZ 22 may out-shoot your choice of 9mm carbine at the 100yd line though.

I would have to agree with Randoms comments also, varmint 223 may be on the frangible side but my experience dictates that most 223 (especially commonly available surplus) is pretty good at penetrating...especially the SS109/62g stuff.