After doind several hours of ballistics research and reading a couple of different varmint forums, I think my gun of choice will be a CZ 527 Varmint in .17 Remington. I'm sure some will say this is to small a caliber. I do like a challenge though. Besides, it's got more energy than a 22 Win mag, 17 HMR and 22 Hornet and is still small enough to handle rabbits and squirrels. I thank all for your advice.