Finally remembered to report this, the Volatile Projectile Overcharger used on bases will increase range and projectile speed, however I see no difference in projectile speed when compared to stations that don't have it firing next to the one that does. Only tested with magcannons though.

Edit: to my knowledge it should be +100% Projectile Speed from it

Still broken, also doesn't seem to work half the time. Bases show the tweak being popped but they still won't fire past their normal range.