I know this is a long shot, but I'm looking for advice regarding the Leupold VX-3i 1.5-5x20 Rifle Scope and its suitability for air rifles, or not!

It's fixed parallax, 150 yards according to the Leupold website, so my concerns are, (1) would the scope zero at 30 yards? and (2) would the image be in focus from around 20 yards?

Any advice will be gratefully received.