The "humorous" part of this is we lost the hog after we gave it a BAD headache!
I took a fellow on a hog hunt, put him on stand at O'dark-30, told him from where the hogs would come, about what time they would come, told him how they would get on the corn from the feeder, instructed him where to shoot (the "X" between opposite ears and eyes) and heard him whack one about an hour into the hunt. I called him on the radio 15 minutes after, told him to get down and pull the hog over to his stand and get back up there to await the next one - at a distance of 25 yards MAX. When I went to get him in two hours, he said he had heard some rustling beneath his stand and could no longer find his hog. "You shot him right?" "Yeah." "About 25 yards, right?" "Yeah." "In the head like we talked, right?" "Yeah." "With what?" "22 short." "OMG!" Now that's a headache! That hog woke up and WALKED AWAY.
Your 243, much hotter than the 22 short even in a Varmint weight bullet (and I sure don't advocate that either), will drop them if you shoot them in the right place. But some hogs are going to get up and take off UNLESS you heed the advice of your fellow hog hunters here to use ENOUGH BULLET to get the job done! Oh yeah, some of them are STILL going to get up and run away...
My 72 y.o. hunting partner ALWAYS uses his 243, out to 260 yards, and his greater than Varmint weight boolets Get 'er Done!