It's something that has been worked on, but I have kinda lost interest in it. No one wants to help beta test it. I've gotten it to cycle a decker. Someone apparently got a modified fgc9 to cycle 9mm deep, but I haven't seen it. Another guy in BLC was working on some other modified 9mm cartridge in the decker platform as well

As for energy, it was closer to 22lr. And 32 auto has about the same energy as 380, so yeah, it's not that powerful.

So far all of my ammo projects are for manual actions. It just works better, and these kinds of guns are still really neat.