How many fps does a b3-1 22 caliber pellet rifle have?

The Chinese B-3 is rated at 450 FPS by the Manufacture. This is considered to be slow in the world of .22 caliber air rifles. As an example the Hatsan

model 95 fires a .22 caliber pellet at 800 FPS and a Crosman

Nitro

Venom fires a .22 cal pellet at 950 FPS.