Can a Tasco 3-9X 50mm scope be mounted on a Winchester 22 cal rifle model?

While anything is possible,why would you want to use a scope of that power and objective size on a .22 cal.rifle?If your receiver has a built in 3/8in receiver rail then you may be hard pressed to find rings of the significant height to mount a scope of that size.I would recommend that you get a scope of 4X power.That is all that is needed for the maximum affect range of a .22cal rifle.