I'll not comment on the veracity of the article. I will say that when flying non combat missions in the US I always carried a snub nose .22l for survival purposes. I could fit two boxes (100rounds) of ammo in the cigarette pocket of the flight suit.
I also carried the same pistol (revolver) hunting for the occassional partridge or rabbit...
It's a good round and handy.
Cogito, ergo armatum sum