While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
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There is a chart on RimfireCentral of ring/scope pairings, it can be handy. I'm currently using Weaver adapters and low 30mm Weaver rings, but there is no uniformity between manufacturers for what a "low" ring is.
With that scope I would think you would need burris rimfire high rings. It has a 11mm grooved receiver if it is a 455. Or you could get a d.i.p rail and use whatever weaver rings you want