Add me to the list. I was sitting on the deer stand yesterday morning and casually touched my front ring and noticed some of the screws were loose. I kept looking at it and figured out that the front ring was broken on one side. I got to looking at it more closely back ring was cracked too.
I can't figure out what happened. The rifle went from my safe to my truck and as far as I know, it was not dropped or anything. The only think I can figure is that it spent the night in the truck and the temps were in the lower 20s. Maybe it got cold and brittle.
Plain old Weavers sure aren't as pretty, but they are just about a light and dead nuts reliable.
I'm sure there's been tons in colder weather conditions that have not broken. How much torque and are you going to throw a 30-30 as a backup in the truck next time??
