-It currently doesn't do enough damage (2000) to warrant the 2 second delay. Compare this to 1200 damage and .4 second delay on Guass 3.

-It also doesn't do any concussion..... which it should

I'd suggest one of the below:

Raising damage to 3000 (which is still 1000 less than NPC cap gauss).

Raising damage to 2500, lowering delay to 1 second, adding half concussive force of NPC cap gauss.

Adding concussive force of NPC cap gauss, lowering delay to 1 second.

+1 to the second one.

The lack of concussion is probably related to the lack of concussion with Plasma Annies, which are also supposed to have that.

I actually cloned the cannon which is used by the NPC "Military Trident" (the one you see in-game with swarms). But it may not be the same one used by Constellations and the like. Anyway, I'll check into this.

[EDIT] I've changed it to be closer to the common NPC weapons. I bumped damage to 3000, dropped delay to 1.5s (which it is for NPCs), and changed some other things like velocity to also match the NPC weapons.

They already had the same concussive force. I don't know why it isn't being applied.