I have a Tasco Super Sniper 20X42 on top of a 10\/22M converted to .17HMR. It can be cranked down to 10 meters. The objective adjustment ring is located in front of the ocular bell where the magnification ring would normally be for variable scopes. The SS 10X42M, though, has the AO ring on the left side. Although I've never handled one, I'm sure it'll crank down to 10m also, but could be wrong.