At one time, a rifle shot or two would have been used as a signal.
Less than ten minutes had gone by when Helen heard a rifle shot.
The rifle shot was a million times louder than anything ever heard in the world before.
He began his finish with a question that cut through the air like a rifle shot.
He had, several days past, while hunting far to the east, heard a rifle shot.
This time the sound of the rifle shot came afterward.
She never heard the rifle shot, for the bullet arrived before the sound.
A single rifle shot sounded from the head of the column.
My feet hit the sand as a rifle shot fired.
Only the lack of rifle shots made this "time" different from those times before.