Algodoo

Very interesting concept lethalsquirrel! Works very well and is remarkably simple!

Thank's, Meerkoos. I'm going to refine it a bit more and use it in my next gun.

I liked your bananana scene more squirl.

Okay now seriously... this is really good! I've seen a bunch of scenes like this one but none actually solved the shell thing. The only solution to the cycle fire issue would be to use timeToLive on the killable thing instead of a killer, set by a laser that gets activated when the firing pin gets hit (like, the laser is covered by a box that goes back or whatever)

But I can see uses for it already. My long recoil scene has a lot of issues with cycling after i made some improvements, maybe this is key. And for gas operated guns, a single thruster on the killable primer thingy would be enough as you don't need a force on the shell. unrealistic but logical to some extent

Thanks linkage. I actually already solved the problem. I have a pistol coming soon that's gonna use these cartridges. you'll see what I did soon

can i use your concept?

of course!