Tumbles?
At range with 4H Shooting Sports with thousands of 22 rounds, every hit was a pure round hole.
The old “tumble” myth was attributed to .223 AR-15, which in boattail, reportedly could tumble after initial impact.
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.