I usually mind my own business at the gun counter, but, if I heard that someone was going to seriously consider a .22lr over a .233/5.56 for defensive purposes, I would have probably interceded as the op did.
The shotgun was probably the wise choice for now because of limited .223 ammo at this time.
Just the other day I heard a guy telling his friend about how much more knockdown power the .380 has over 9mm, lol. I said nothing but my wife heard too and it spawned a raised eyebrow from her.
Navin R. Johnson: "He hates these cans!!!! Stay away from the cans!!!!"