>>64109043
22lr just has rifle in the name. It’s got a tiny amount of powder behind the bullet, so it’s gonna be extremely efficient from short barrels. 12” might even be long ngl

>>64109058
Yeah it’s still a meme chambering. The Indians of all people managed to fit their equivalent of a 5.56 MARS inside the grip of picrel. IIRC it’s got something like 850ft*lbs from the 12” barrel. So non-meme-chamberings are doable, and we don’t have to pretend 5.7 and 4.6 are some groundbreaking special breed of ammunition.

>>63980592
Check out what the Indians made. It’s like an mp7 with a 12” barrel chambered in something very analogous to 221 fireball. It’s Quite large, certainly can be made much smaller, but Atleast it’s still smaller than a mk18