This cartridge sounds like 22ppc really. There truly is nothing new under the sun. I had a 8twist 22-250 built about 12 years ago. Fantastic rifle! But I really didn't hunt it the way I envisioned in my mind. So I just went back to a boring old '250..... now it's a swift. I think I'd like to build a 10 twist short barreled .222rem now..... see where the gun gods take us. But hey, 22arc sound exciting and will feed in semis great! That truly is something! Imagine a fast twist browning bar in 22arc! Coyotes be in trouble!