Do you remember the old Looney Tunes cartoons where Bugs Bunny would stick his finger in Elmer Fudds gun barrel and it would split like a banana? Well this is what happens when the crew leaves the boresight device in the muzzle and then fires the gun. This is a tank that was sold to the Kuwaiti Army, during the transition training the crew finished boresighting the tank and forgot to remove the boresight device, which is a large telescope type device, and fired the gun. Oh those wacky Arabs, Inshalla.
