Re: .338 Edge primers CCI or Fed. Match
I shy away from CCI's because I have had a high percentage of them NOT fire. I have probably used around five hundred CCI's from several lots and had problems with nearly every lot. I have used over 10,000 Federal GMM with 0 problems from -20 degrees to 90 above.
I cannot speak for CCI's current quality as I have not used them in nearly 10 years.
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.