hey
i think you will probably be best suited with an adjustable objective scope of some type only because most 3x9x40 and other deer rifle scopes have a parralax setting at 100 yds if you wanted to sight in your .22 at 30 yds
or shoot closer than say 45 yds you might have a problem with the view
on a scope like that
depending on your budget you may find the burris rimfire a/o scopes might fit your needs i think they have a 3x9x40 a/o now
you can find plenty of rimfire info at rimfirecentral.com if you need some more info real good guys over there lots of good info
divr6347