Revolver cannon with electrically boosted explosive propellant.
View: https://www.youtube.com/watch?v=vm_-WCairug&list=PLU90SZmWDH_AyOrSge-_hjUIdC2GAbo3w&index=11
And an early guided projectile project
View: https://www.youtube.com/watch?v=NK-0TJQEugA&index=6&list=PLU90SZmWDH_AyOrSge-_hjUIdC2GAbo3w
And an early guided projectile project