I don't understand your units abbreviation.
The standard velocity .22 Long Rifle takes a wax coated 40 grain RN lead bullet to a muzzle velocity of 1,138 fps. (feet per second).
http://www.chuckhawks.com/22_rimfire_cartridges.htm
Decent quality 22 caliber Air Guns for ~$500 reach 1,000 fps.
Of course this is a much lighter pellet, maybe 14 grains versus the 40 grains of the 22LR. But the original poster (BuffaloJack) said velocity, not energy.
Correct. See post 58. I caught it just moments after my knee-jerk post about muzzle “energy”. Sorry ‘bout that.