My first test, the velocity test I performed using my Chronograph shooting 5.1 grain RWS steel BB's with a fresh CO2 cartridge. The fps ranged from 246 to 274 fps with an average 5 shot reading of 257 feet per second. Keep in mind it was a pretty cold day, even my pool was frozen over. I did keep the KWC Makarov PM inside right up till the time of testing and even left the magazine in my pocket till right before I tested it out. The fps was rather low but I would expect to hit closer to 300 on a warmer summer day. The KWC Makarov PM CO2 Blowback BB Pistol is a full functioning full blowback pistol with a short barrel so I was not expecting super high fps from it. Read full article here: https://www.replicaairguns.com/2015/12/4/kwc-makarov-pm-co2-blowback-bb-pistol-field-test-review.html Buy the KWC Blowback Makarov PM in Canada: https://www.replicaairguns.ca/kwc-makarov-pm-45mm-blowback-co2-air-gun