I shot my first squirrel with a .410, then every one since has been with a .22 with iron sights. You just have to keep it intersting, right? I'm thinking about getting a new .22 or .17hmr with a scope for squirrels. I've always limited myself to fairly close shots with the open sights. I think I'd like more shot range with a scope. (Not that farther shots can't be made with iron sights. I just don't trust my abilities thatmuch with iron sights.)