My first TC contender that I ever owned. It came with a custom .223 barrel marked with "clark" in the barrel lug. Not knowing what I had and it being the first pistol that I had shot; I thought all pistols would shoot any type of ammo that you run through it into one hole at 150 yards. I ended up selling the .223 and getting a 6.5JDJ and ultimately ended up selling the entire contender set-up and getting an encore. I have yet to shoot another pistol in any caliber that shot as incredibly well as that .223 "clark".