Re: How are the QRW mounts??
I did mention "heavy magnums" such as the 300 or 338 RUM or bigger. I have seen parts from the mounting set up blow up upon recoil. 7mm STW would probably be ok.
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.