Must have been cast bullets in that 38;_) He does look pretty clean but I can see his oysters sucked in from hanging nose first, 800 lbs doesn't seem too far off looking at his front hooves. I grew up on a hog farm and have put a 600 pounder to sleep forever with a single blow from a 24 oz framing hammer, DRT, so yes I'm sure a 38 will kill one if you know where to put the bullet.
"The next day, the sharpshooter took the hog to a nearby peanut company to use its scales to weigh the wild beast"