If you have not already watched my Baikal Makarov MP-654K CO2 BB Pistol Table Top Review, make sure to do so so for info on features and specifications.
During this Field Test Shooting Video Review of the Baikal Makarov MP-654K, I take a look at the actual real world velocity using my Chronograph along with some accuracy testing using paper targets with a controlled shooting position.
I shot 5 rounds through my Chrony Cronography and got an average fps of 306 which was not super high but just fine for plinking. I would expect to get well over 100 shots with my Baikal MP-654K Makarov since the CO2 being released with each shot is fairly conservative. The temperature on this day was under 10 degrees Celsius.
Moving on with my accuracy results from 30 feet back in a semi rested position, I was able to get a 5.5 inch goruping with 10 shots. The Baikal Makarov CO2 BB Pistol does have a rifled barrel which may work better when using lead BB's but you would have to be careful not to load too many at a time since the magazine follower spring is rather heavy and could deform the softer lead BB's making them jam in the gun. Hard Steel BB's do not deform or jam in the gun but are not optimal for rifled barrels since they do not grip the rifling very well and can give sporadic results. My grouping was also centered a bit to the right but not by too much.
The 2013 Baikal Makarov MP-654K CO2 BB Pistol may not be the best performer I have tested in terms of velocity and accuracy but it is for sure one of the best built and most realistic BB pistols I have reviewed.