This Ruger Scope Ring will only accommodate a 42mm objective lens. I would recommend the Leupold Ruger Rifle Scope Mount Rings in a medium height, which can be found by using the link below:
https://www.opticsplanet.com/leupold-ruger-rings.html?_iv_tube-diameter=30-mm&_iv_ring-height=medium
Since this Ruger Scope Ring 4K30 Medium Stainless Steel 30mm 90285 fits up to 42mm objective lenses you will most likely need to go up a size. So you will need model 5B30 90274 for the front and model 6B30 90275 for the rear.
https://www.opticsplanet.com/ruger-scope-ring-5b30-high-blue-30mm-90274.html
https://www.opticsplanet.com/ruger-scope-ring-5b30-extra-high-blue-30mm-90275.html
The Ruger Scope Ring 4K30 Medium Stainless Steel 30mm will fit a Ruger M77 22 Hornet.
With a 44 mm objective lens, you will need medium height rings.
That will depend on the rifle model and scope being used, you can email us at techsales@opticaplanet.com so we can further answer your question.
This ring comes a single ring.
Please email us at techsales@opticaplanet.com so we can further answer your question.
Please email us at techsales@opticaplanet.com so we can further answer your question.
Yes, they will as the base should have two half circle grooves cut out of it which are the Ruger proprietary mount system.