Check out the footage captured by Golf Channel ... Bryson was swinging so damn hard, fellow tour pro Vijay Singh could do nothing but sit and stare in awe!!
The swings were rapid-fire, too ... Bryson would destroy a golf ball to the moon and then immediately turn to his caddie for a reload!!!
"It's exhausting to watch," one announcer said of the routine.
It's unconventional for sure ... but it's worked for DeChambeau this year -- he's known as the longest driver on tour BY FAR, and he's one of the biggest favorites to win The Masters this weekend because of that power.
Of course, Bryson's got to save some in the tank to get that far ... so maybe opt for the practice putting green next time???