It doesn't take much to kill rabbits inside 30 yards. I've killed dozens over the years with my old Daisy 881 and Crosman 760. Last couple of years I've been using a Sheridan 2260MB .22 caliber C02 rifle and it is deadly. They're 149.00 from Pyramydair. Mine shoots 5 shot groups under an inch at 30 yards with Crosman Premier domed pellets from Wal-Mart.