.22 would be a good choice. if you need to dispatch slighly larger game such as fox, woodchuck, etc...you can't go wrong with a .22-250. or a .17 HMR. for just ocasionally dispatching close quarter varmits, i would go with a hand gun. my walther P22 is perfect. some people can't hit a barn door with it. i can drive a nail with it
. just depends on the person and how familiar they are with the weapon. i too shot expert marksman with my M16 right along side with guys who couldn't even qualify. it's all in the person behind the trigger. whatever you buy, use it. go to a range and shoot it every chance you get. you know full well that you must get comfortable with it and learn to shoot it instinctively. getting it out once a year is pointless as far as accuracy goes.
