Hello all. I have a friend at work who is debating on whether or not to build a custom .300 Win Mag with a SS barrel, or just buy a Christensen Arms rifle with their carbon fiber barrel. All of my rifles are custom with either Proof or Hart barrels. I have a local builder who is really good. He's been doing it for over 55 years. That's who he will go with, if he goes custom. I just don't know much about Christensen rifles at all. Are they good, sub half shooters? Can anyone give me pros/cons regarding their rifles? Thanks in advance for any and all help.