Our guns boomed away now and then, but the Germans made no answer.
Then his big guns were booming toward the fleeing crew.
His own left-handed gun boomed and the man was flung back.
The gun boomed but the bullet plowed into the ceiling.
The gun boomed from behind me and I felt its flash.
He increased the pressure until the sear snapped and the big gun boomed.
Another gun boomed and a bullet tore through the side of his uniform.
None too soon, it seems, for less than five minutes later the guns were booming so loudly that we went and stood in the hall.
A gun boomed; then another, blanching the sky to the south.
In the far distance a gun boomed, vibrating the air.