Was sort of being sarcastic but not intended to be personal.
I like the frontal brain shot on hogs a lot and have been dropping them regular with CBs since around 2006-7. .22 CB shorts that is. Yes I'm close when I shoot and it is not a high risk shot. If one has the patience to wait for a hog to drop it's snout so the aspect of the frontal skull plate in near 90* it is a pop'n flop proposition. Shooting them in or behind the ear is riskier with low powered rounds due to the complex bone structure around the ear. Hogs have an inner and outer skull structure of sorts, particularly present in the aft hemisphere. Another shot I like is the vertebrae betwixt skull and shoulders. Either will present in every case if one is patient. Otherwise conventional theory is best supported by a larger bore gun.