Not to pick on Burris, but are they still using that small Allen screw to attach the top half of the ring? I have had many strip out the Allen. I have a couple in a box with drilled out screws from this happening.
We sold a brand new Burris scope to a customer one day. He brought it back about a week later with a minor problem and we sent it back to Burris for repair. It came back, but with a nasty scratch. We returned it, explaining that the this was new and the scratch wasn't there when it was sent back. We got it back a couple days later along with a note saying something about blemish's not being covered. This went back and forth for about a month, to no avail. We ended up eating the cost of that scope and its repair to save the customer. We dropped Burris scopes from our line a short time after and haven't sold them since. That was about 6 years ago. I couldn't imagine a company taking a stand like that.
CW