How solid is the Burris XTR2 in mechanical reliability. Are they holding up to hard use? Are they staying repeatable? I don't want to talk glass quality. The glass quality will work for me. I have S&B, Premier, Nightforce, and Ive looked through the Burris, it will work. I'm building up three new rifles for two kids and wife. The Kids are shooting more comps than me now. I was looking for a scope with good mechanical qualities and I like the Burris price point. I also think the SCR reticle for what we are doing is going to be an improvement over what I have. I need the .2mil marks and a finer reticle. Thanks