The Hammerli 850 AirMagnum in .22 caliber delivers heavier pellet mass than the 177 variant at similar CO2 operating pressures, providing improved terminal performance for close-range pest control. The .22 variant retains the 8-shot rotary magazine and two-CO2-cartridge power system. Hammerli's Swiss precision standards ensure consistent shot-to-shot velocity output from the CO2 metering valve. Type: Rifle Action: CO2 Semi-Automatic Caliber: 22 Capacity: 8 Year introduced: 2005, Switzerland Weight: 91.2 oz Overall length: 41.3" Status: Active Intended use: plinking, pest_control, training