RWS 850 Co2 Air Rifle
It is fast and hard hitting, but uses Co2 in the Air Source bottles for power. This means an air rifle with PCP power, but not the added complications of a scuba tank and filling station.
The 850 uses a rotary magazine and bolt action cocking for repeat shots. It is scope ready with 11 mm grooves.
My personal 850 sports a 6-18x40 mm Bushnell Banner for easy shots out to 40 & 50 yards. Most of the time I use either RWS Super Domes or JSB Exacts.