Re: Scope for LR .22lr.
I have a Leupold VX-II 6-18XAO on a .17HMR that works well. I imagine it would also work on a .22LR.
If I can remember right, I think the objective adjusts for parallax down to 50 yds, so you could also use it for more conventional ranges.
These are a little pricey, but IMO they work better than the <$100 scopes.