For many years my rabbit and squirrel rifle was a BSA Martini with BSA peep sights. My eyes finally reached the point where I couldn't use the peeps except in bright daylight. I switched to an old Model 60 Marlin with a 4 power Redfield Frontier scope. That was by far the most accurate 22 caliber semi-automatic rifle that I have ever owned and was very effective on squirrels. I passed that rifle on to my oldest daughter several years ago. I have just purchased a Remington #5 that shows promise. Neil