It will depend on what gun model you are mounting that scope on but the 1" low DNZ Products Rifle Scope Mounts for Ruger should work for most of the gun models listed.
You need the DNZ Products Rifle Scope Mounts for Ruger 10/221" diameter medium or low height to mount the Leupold VX-Freedom Rimfire 2-7x33mm Rifle Scope. The low height should work fine with the rear sight folded down.
The DNZ Products Rifle Scope Mounts that I would recommend for your specific setup is any of the Low height, 1" tube, 10/22 mounts. Due to the smaller size of your objective lens, you can use the lowest height rings possible which will aid in your shooting and head position. MPN:11080 (black), MPN:11081 (silver), and MPN:11080c (realtree APG).
You will want the medium height rings for that setup.
You would need High height for that scope.
This mounts directly to the rifle and not the rail.
The screws would be black for either model
You would need Medium height rings
You would need High
The low would fit, however I would recommend high so you have room to get to the takedown part of the rifle.