Anyone shoot a 6.5x223? I own a 5.56 and a 260 already and have an opportunity to pick this gun up. It's a bolt action.(not a factory clambering). Not looking for semi-auto use because I have a 300 blk. Thinking availability of brass and components I already have would make a nice little truck or youth gun. I don't know much(anything) about this and welcome any opinions.