While on a shoot Saturday, I had one of my carbons explode on me as I released the string. The arrow snapped 5 inches down from the nock. As I released, the main part of my shaft shot off 20 yards to my left at almost 90 degrees, while the fletched portion went about 7 or 8 feet in front of me.
Luckily, there was no damage to my bow and and none of the other shooters were injured.
During the shoot, I had several misses with the blunt tipped arrow. The best I can figure is that it must have hit a hard surface at some point, causing some stress in the upper portion. I guess if I were a better shot, none of this would have happened!!