Sorry for the delay in replying to comments and questions. When I finally returned home Friday evening, my internet was down. Turned out that a group of javelinas had rooted up the phone line and the fiber optic cable about 1/4 mile south of the house, chewing up both pretty thoroughly. Finally got the internet restored just this morning.
Gus, I am going to use either Talley rimfire rings or Warne rimfire rings.
Here is a picture I snapped last weekend.