Of course, for that to happen both men would have to fire simultaneously and not miss.
It looked like a man- Three hand weapons fired simultaneously.
The enemies looked up at the same time and fired simultaneously.
This is the first time two candidates were fired simultaneously.
They each took shelter behind some trees and "fired simultaneously."
British practice evolved to normally fire at two lines simultaneously.
He fired simultaneously with a revolver shot from the front.
Without a word passing between them they simultaneously fired their missiles.
A matter of seconds if several fired on us simultaneously.
Even so, I probably would have survived the impact a good deal better had not both barrels fired simultaneously.