I was wondering approximately what distance should you use a scope? I can usually get within 20 yds of everything i shoot but sometimes i cant. I usually hust small pests and rabbit. My gun came with a scope but i dint feel like goin through the hassle of sighting it in for thhat one time that somethings out of range with open sights. So what should i do? Keep open sights or scope it up? Its a 17 caliber by the way.