I like the rings, (62070) and the base used with these rings. It seems to be a solid mount. The only problem was that the height of the base used with these rings was not listed in the base's description. Nor was the height of the ring in it's description. I had to guess as to which ring height to order. I ordered the medium height to be safe mounting a 40mm. scope. After a call to Leupold I was told that I could have used the low rings. It would have lowered the scope by .125 inch. It's not that big of a deal, but having the dimensions would have made things a lot easier.
Pros: very good fit and finish
Cons: none
This review was written in the old system and had content requirements that are different than reviews written today.