The Deluxe .22 Doetail Rings with Picatinny TriRails has a versatile TriRail Ring System that fits all Weaver/Picatinny bases and fits all one-inch tube scopes up to 56mm objective.

Weaver Optics was purchased from technology giant ATK by Meade Instruments in 2001. In April 2008 ATK acquired Weaver Optics from Meade, reuniting it with the Weaver scope ring and base division ...

Also, the flexible steel top ring would bend to the shape of the scope tube. No need to lap these top rings; they were “self” adjusting for grip surface. Better still, they were inexpensive.