I have been real curious about hunters using airguns for bigger game, deer, hog etc. There seems to be an overwhelming tendency to take vital shots versus head shots. Even a good number of states have caliber restrictions requiring 35 cal or above for said game. It appears that head shots are far more reliable. Is there an issue with penetration? A good 30 cal should definately possess enough power to drop a deer in it's tracks. The majority of hunters seem to be more in line with vital shots with big wounds for tracking purposes, using wadcutters and so forth. I'm looking for information here, so what am I missing here with this interesting sport?