Rio Fly Fishing Fly Line Connect core Shooting Line .037 Fishing Line, Orange An incredibly sensitive shooting line with fantastic no-tangle performance - the best shooting line ever made Both ends of the shooting line have large, 8" welded loops to allow anglers to easily thread through whole shooting head coils, or reels for speedy rigging. All fly lines are made with pride in our Idaho Fall facility Anglers can utilize the thick handling section at the front, or keep the thinner non orange end at the front.