A friend and I run .223 Rem for the club matches too, but you drop lots of points out West where they run stages out to 850-1200. I usually run mid pack with everyone else running 6c'moor, 6.5c'moor, 6.5x47L, 6BR, etc. It's cheap fun, but if I was going to shoot a real match with all the time off work, food/accommodations, travel and match fees, I would not shoot .223 Rem unless there was a dedicated class.