A friend that I work with spent time in the sand box and is now retired. He told me a story of how impressive HE thought the 50 BMG was.
He was setting on a hill top with a radio man waiting for a bad guy to show up that was selling munitions. They (?) didn’t want him killed (I have no idea why) just scared.
The bad gun showed up and they waited for the buyer to show up. As both got out of their cars they were told over the radio that they were the ones and to scare them.
At over 800 yards using a Barrett he put one round through the side of the car.
The buyer jumped in his car and took off and the seller ended up walking (10 miles +) back from ever he came from.
After several hours my friend went to check out the car and see if anything was left in it.
The car was empty but he noticed the entry and exit hole. He popped the hood and the engine was in pieces.
It was a front wheel drive V6 and it took one whole side off the motor and the crank was visible.
I had the pleasure of shooting 25 rounds through a M2 several years ago at Knob creek.
All I can say is PLEASE God PLEASE don’t ever let me be on the down range side of a 50.