If i would be looking a new rimfire, i would buy a CZ and 457 Varmint.
Few of my friends have these, and these are extremely accurate rifles.
If you want to build it with a new stock / chassis as soon as you got it, look this one.
But if you want it straight out of the box to shoot, this one is looking very nice.
Also changable barrels, you can put 17HMR or 22WMR on this action, so it could be a trainer and a hunting rifle on one.