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.
Sheer numbers is probably part of it, but the advantage of being able to rapid-fire accurately is also a major factor. Finally, the Mafia like to use the 22 for back-of-the-head executions. ;>)