Re: What to do....build or buy
Lilja is always a sure bet for a quality match barrel. They take a while to get, but you cant rush perfection. I wouldnt recomend shilen anymore. They used to be great but the barrels available to you and me have not been so hot in recent years. I have an ABS barrel in the works and will let all know how that one turns out. All other reports have been good.
Others here have used a host of other great barrels and I will leave the comments about those to the shooters that have used them.
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.