Developing a new wildcat - what do you need?

[JeeperCreeper]

I kind of envisioned the round in PCCs so maybe thats where the idea came from. The intent was certainly to have it small enough to fit in a PCCs even though its about as long as you'd want to get in a pistol. We're talking Desert Eagle size grip frames.

I bet starting with an AR platform wouldn't be bad.

Use a standard bolt face, machine the barrel only, and with an adjustable gas block.

Might be the easiest way to start. Kinda like a AR57.

Not sure how hard a blowback AR would be though if you go that route

 

[Ivy Mike]

I bet starting with an AR platform wouldn't be bad.

Use a standard bolt face, machine the barrel only, and with an adjustable gas block.

Might be the easiest way to start. Kinda like a AR57.

Not sure how hard a blowback AR would be though if you go that route

CMMG already makes one called the Banshee. They use a cool radial delayed blowback system to mitigate the downsides of straight blowback and to eliminate the need for a gas system. It's a really novel system and there is a video of it on Forgotten Weapons.

It's not a terrible idea but the issue I see is that if you're going to use an AR, you already have your choice of rounds and options. Everything under the sun already exists.
But I like the idea of pistol caliber carbines as a less expensive option that is somewhat simplified compared to an AR. And the nice thing is that even though my round would be somewhat long, it's still within the range of being manageable in simple blowback firearms which makes them cheap. It could be used in a pistol if you really wanted to and it could be used in any existing .327 Magnum revolver with a different cylinder. Might even be a fun little cartridge for a lever gun. Perhaps I could get Ruger to pick it up now that they own Marlin.