Calibre / Shots Per Fill* .177 / 4.5mm 250 shots .22 / 5.5mm 250 shotsMax Muzzle Velocity .177 / 4.5mm 440 ft/s (134 m/s) .22 / 5.5mm 350 ft/s (107 m/s)Fill Pressure* .177 / 4.5mm 232 bar .22 / 5.5mm 232 bar