Sandia researchers Red Jones and Brian Kast and their colleagues have invented a dart-like, self-guided bullet for small-caliber, smooth-bore firearms that could hit laser-designated targets at distances of more than a mile (about 2,000 meters).
https://youtube.com/watch?v=KLwVVYV3_K4
https://goo.gl/YgNrQ
https://youtube.com/watch?v=KLwVVYV3_K4
https://goo.gl/YgNrQ