Have you used them?
I was leaning a bit towards them (they’re saved in my cart at Eurooptic) this morning and are, in part, why I posed the initial question. I like simple/fewer points of failure rings which is why I tend toward Talleys. The Leupolds are similar in that regard and more aesthetically pleasing to my eye. I’ve just never used them and haven’t read a lot about them.
Yes, on a rifle for a friend. The are holding up without any issues. I have used Talley lightweights in the past and had them crack. I will no longer use them for anything. Dave’s heavier duty rings are solid and good to go.
I always use a torque wrench to mount optics, so the cracking was not due to being over torqued. The Talley lightweights seem to have pushed thin to the edge of the envelope.
Durable and reliable are the most important consideration for mounts to me. On my personal rifles, I use Picatinny rails and rings and on a couple of rifles now have gone to Spuhr mounts, which are the most robust lightweight option I know of at the moment.
fwiw - I mounted a Luepold pic rail on a new M70 Super Grade just today. It will have an old well proven NF riding up top until the rifle proves itself reliable and accurate. Then it may have these Luepold rings on it, or the Pic rail may stay.
So many seem to get all wrapped around the axle on maintaining the look of rifles from our youth. Scopes and mounts have evolved dramatically in the last twenty years and strengthened one of the weakest points.
To consider aesthetics of a Pic rail set up on a traditional styled rifle, here is one of my customs made by Sterling Davenport with a lightweight Pic rail and NF ultralight Pic rings. It is rock solid. The stock will break before the scope is knocked out of whack.