Do bullets break the sound barrier?

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