These are 34mm and 35mm rings and will not fit your 1" tube. You will need one for a 1" tube.
https://www.opticsplanet.com/leupold-177093-mark-ar-integral-mounting-system-1-pc-base-1-ring-combo-for-a.html
This has been copied from the Leupold website; SPECIFICATIONS:
Material: Aluminum
Base Cant: No
Base Configuration: 1 Piece
Ring Diameter: 34 mm
Ring Height (in) 1.5
Weight (oz): 6
Keeper Clamp Torque: 65 in-lbs
Ring Top Screw Torque: 28 in-lbs
Length (in): 5.43
Rear Offset (in): .68
Ring Depth (in): .65
Length Within Rings (in): 3.46
Keeper Length (in): 3.68
Front Offset (in): 1.75
Ring Width (in): 1.98
Ring Height (in): 1.5
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Yes, the Leupold 177094 Mark AR integral Mounting System 30mm diameter model can be found at the link below.
https://www.opticsplanet.com/leupold-177094-mark-ar-integral-mounting-system-1-pc-base-30mm-ring-combo-for.html
The Leupold Mark AR Mount could be used for that set up but will most likely be too high. The guide at the link below will help you determine what ring height you need for your scope and rifle.
https://www.opticsplanet.com/howto/how-to-how-to-measure-scope-height-scope-ring-height.html
The Leupold Mark AR Mount will probably work for mounting a Vortex Strike Eagle 5-25x56 to a Ruger American if the rifle had a one piece picatinny base. I recommend using 34mm diameter two piece rings like the ones listed at the link below.
https://www.opticsplanet.com/vortex-precison-matched-riflescope-rings.html?_iv_tube-diameter=34-mm
Yes, the 35mm diameter Leupold Mark AR Mount should work fine mounting the Mark 5HD 3.6-18x44mm to a ScarH.
The Leupold Mark AR Mount fits to standard picatinny/1913 rail systems.
Yes but you may or may not need a riser depending on your rifle configuration.
There is a 34mm and 35mm version.