I am mostly interested in hunting squirls with an air rifle. Both for the practice and because they are clearing out my walnut crop. At this time, I am not planning on getting anyting larger than a .22, and I'm leaning toward a .177 just because that is what I had in the past. A 177 seems like it is enough for a squirl at no more than 5o feet or so. So I would like to get some input from some of you folks who have done this for a while before I plunk down my cash for something that will probably be my only air gun.