Does a bullet break the sound barrier?

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  1. #weather
  2. #boring
  3. #climate
  4. #bullets
  5. #possible
  6. #regularity
  7. #sound
  8. #second
  9. #conditions
  10. #bullet
  11. #temperature
  12. #level
  13. #standard
  14. #break
  15. #elevation
  16. #pressure
  17. #roughly
  18. #depending
  19. #speed
  20. #barrier