At the NTI, we did a mystery gun run with one in a shoot house. It was a hoot as you were wearing a long nightshirt to simulate getting out of bed. You had to carry extra ammo in your hands or in a box and tote it around the shoot house. We didn't have practice with the gun before hand. We had slugs and birdshot as a mix - confusion reigns.
As far as Joe Biden and two shots, I came across two targets - BOOM, BOOM and surprise there was another - so I butt stroke it with the empty gun as it was very close (OOOPS -
Sure, it's a gun and you can run it. Joe could stop an armored division with one.