My son is building a 300 Blackout with a suppressor. It is all above my pay-grade, but I think that it is considered a “pistol” - but it sure looks like a short-barreled rifle to me!
With a pistol I do just a tad better than him. With a rifle we’re about even. I can still kick his butt at the shotgun range!
It has enough power for hunting or self defense. It works well with suppressors and pistol length barrels.
Close to the .30-30 in full power loads.
Close to the 10mm in subsonic loads.