Rail gun tested
There is a video of the test if you follow the link above. This particular unit appears to be much more sophisticated and advanced than previous tests I have seen of this system. This weapon would allow ships to loiter out of the range of traditional munitions and strike at a speed faster than a jet can travel.
US military tests 'Star Wars' electromagnetic railgun that fires projectiles at 4,500mph and can penetrate concrete 100 miles away
The technology has been described as 'game-changing'. The railgun was tested Dahlgren naval facility's new Terminal Range in Virginia was created by BAE Systems.