from Great Game India:

China is trying out the biggest coil gun globally, which can shoot a heavy object weighing over 100 kilograms (220 pounds) at a speed of 700 kilometers per hour (435 miles per hour) in less than 0.05 seconds. Chinese media reported this on Friday.

The coil gun, also known as a Gauss gun or a magnetic accelerator, has a bunch of coils along its barrel. These coils are activated one by one to create a magnetic field that pushes the object forward. The object used in the experiment weighs 124 kilograms, the heaviest ever for such a test.