That’s one messed up article. It’s not a rail gun. The round is a ramjet. Development was multinational for the Army.
I wondered about the photo, I’ve learned to not place too much confidence in accuracy of photos on the web.
Rail gun projectile has no propulsion except for the electromagnetic drive.
The ramjet looks pretty dirty on the burn.
The ones that amaze me are the Excalibur howitzer rounds. Incredible accuracy due to guidance fins that pop up after firing and correct path in flight. 50 mile range with amazing accuracy.
Scramjet? Fire one of those from ac130.....yeah....