Sturdy rings for my dmr - Burris XTR Signature 34mm Rifle Scope Rings

I bought these rings for my .223 "marksman" build. I mounted a sightron SIII scope with 30mm tube. The rings hold true with the recoil of a 223 and the weight of a 30.8oz scope. When installing the scope, I had to take extra time to align the plastic liners and make sure they didn't shift while tightening the screws. I use a bubble level system to make sure the cross hairs are "square" with the rifle. It was slightly frustrating at first, but I was able to get it after numerous tries. I have been happy with the rings ever since.