Perhaps I was too concise. The tumbling is not during the flight through the air, but tests have shown that the bullet tumbles sooner after it hits tissue (actually, pseudo-tissue) than heavier bullets, perhaps because it is lighter.
Yep that’s what they say about .223 FMJ. Probably not so much with expanding hunting rounds.
22 Rimfire, never heard anything about tumble before even on Long Rifle rounds.
More folks killed by 22 likely due to sheer number of cheaper 22 caliber rimfire guns.