I put a KIDD Match heavy barrel on my 10/22, so I went with a Bushnell Elite 6500 2.5-16x50.
It's a nice scope with decent glass, the side parallax can be set from 10yds to infinity.
Another possibility would be a Sightron S TAC 4.5-20x50. The side parallax can be set from 10yds to infinity on this one as well.
I use mine on my CZ 452 Varmint, but it could be used on a Ruger.
I like scopes with a parallax that can be set this low because our indoor range is only 20 yards.
I like scopes with magnifications that start low & go to to medium power because I like to shoot offhand, and still have a scope I can benchrest with at longer ranges.