Check Out This Incredible Future Tech Railgun (Mach 6) Using As Much Energy As 19,000 HomesCapture13
Check out this video of a high tech railgun made to destroy everything in its path.
These bullets gain speed as more time elapses after it is fired. It can reach speeds of mach 6. It uses magnetic pulses to be shot out of its barrel as opposed to gunpowder.
This could be a huge strategic advantage in warfare moving forward.