This is pretty entertaining anyway, and you don't have to be a gun enthusiast (I'm not).
https://www.youtube.com/watch?v=SqcrmfKp-lk
He takes his Smith & Wesson .500 Magnum and stuffs it with 700 grain rounds (research revealed the grain is the mass of the round, not how much gunpowder it has).
From the wiki:
Ha, crazy.Its primary design purpose was as a hunting handgun cartridge capable of taking all North American game species.
So, first, he demonstrates how painful and unpleasant it is to shoot. There is a brief montage of prior antics "proving" that this isn't the most unsafe and irresponsible thing he's ever done. Then he conducts the experiment. This thing is nasty and ridiculous.