I fired a 16GA about the same size as pictured (in the USA, and yes it was registered there). With 100kg of body weight, a two handed death grip and aggressive stance the first shot was fine. I relaxed a little for the second shot and the forearm lifted a couple of inches out of my hand. A woman fired it one handed, only to have it land about six feet behind her. I'm in no rush to fire one in 12GA...