I just put a new scope on my 300win and used Burris signature series rings with the nylon inserts. Has anyone used these, they are supposed to hold 40% better than regular rings.

I have a set on mu ML no complaints so far.

I've got a couple sets of these. Although I've had no problems with them, I'm still not sure I'm sold on them. I notice the inserts do shift slightly. Once they move the first time, they appear to sit still though.

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Thats the only ones I would use if I could get them. It seems like my suppliers are out most of the time.