Over the years I have accidentally ended up with, what I think, is a cool PCC collection. Clearly I'm into older guns, so no AR's for me.
Of the 4 I think my favorite will always be my first love...the M1 Carbine. It was one of the first rifles I bought with my own money, and since I was working as a gunsmith for a small arms importer, I got to pick from 11,000 carbines to find my little carbine.
I have also learned that back in the day, the .22lr was a VERY good ballistic analogue for the pistol length WCF cartridges. The trajectories are close enough out to about 150 yards, that most any good hand with a .22lr could be capable of an offhand hit at 150 yards pretty easy with a WCF centerfire at standard velocities.