I just watched a u tube on a rail gun test by NAVSEA. Flames everywhere. What? What’s with a the fire and brimstone I wasn’t expecting that.
I believe that NAVSEA test was done in 2012 with very un-aerodynamic slugs.
Try the one from 2013 and later with the more aerodynamic rounds.
Here:
https://www.youtube.com/watch?v=w7Xh28hNRBQ
...and watch this one. where two protytpes are seen on the US Navy JHSV that may test one of them this summer.
https://www.youtube.com/watch?v=GXF0n6aojSc
Good stuff.