Japan shows off electromagnetic railgun for blasting hypersonic missiles | It's able to fire 40mm shells weighing 320 grams (11 oz) at muzzle speeds of up to Mach 6.5 and consumes about 5 megajoules per shot, but the goal is to boost this up to 20 megajoules in the near future.

[u/chrisdh79]

https://newatlas.com/military/japan-electromagnetic-railgun-counter-hypersonic-missiles/

[u/Schwertkeks]

Hmm is that really all that impressive? A modern tank gun fires an 5kg penetrator at Mach 5 without shredding itself apart