With a 56mm objective lens like the Burris Full Field 3-12x56, you will typically need the High or Ultra High Mountain Tech rings to get proper clearance over the barrel on a Ruger American Ranch Gen 2.
You should be able to sneak into a low once we are on top the rail of the rifle.
No, the medium Warne Mountain Tech 30mm Scope Mount Rings will only support an objective lens up to 42mm. You would need to use the high height rings which can support up to a 56mm objective lens.
The Low height Warne Mountain Tech 30mm Scope Mount Rings weigh 3.5 oz, Medium height rings weigh 3.9 oz, High height rings weigh 4.5 oz, and Ultra High rings weigh 5.1 oz.
These Warne Mountain Tech 30mm Scope Mount Rings mount to picatinny or weaver rails. So if you have a picatinny or weaver scope base on your Henry these Warne Mountain Tech 30mm Scope Mount Rings will mount to it.
The Warne Mountain Tech 30mm Scope Mount Rings ring nut should mounted to the rail at 65in/lbs. Warne doesn't state the cap screw torque specs because they suggest using the scope manufacturers torque specs since they vary between scopes and manufacturers.
Email us at techsales@opticsplanet.com so we can help you better.
The ring thickness is .705".
The manufacturer supplies base to bottom of ring heights for most of these models which can be found here:
https://warnescopemounts.com/wp-content/uploads/2016/06/MT.-TECH-Rings-7200-7224-1024x782.jpg
Here is a list of the base to center heights:
MPN: 7213M - .865"
MPN: 7214M - .990"
MPN: 7215M - 1.14"
MPN: 7217M - 1.4"
Do you already have a base or want 2-piece ring set? This base: UY-MT-WE245P-7671M These rings: UY-RR-MT30SMR-7213M