RE: CZ 22 varmint
Ruger 77/22, CZ 22, and Kimber 22 for cost.
I have a 77/22 that at fifty yards 5-10 shot groups are smaller than a dime say .25-.375 inch with either CCI Green Tag or Eley EPS flat points. I perfer the standard quiter ammo for squirrel hunting it dosen't scare the whole woods, I can just keep hunting. The EPS flat tip is tops for hunting drops em with out undo meat damage but spending.
I am about to order a CZ American in 222rem becauseCZ makes a great gun.