Curious to hear from different folks on their opinions. Head shots? 30 caliber slugs? Heavy or lightweight lead? Where is your optimal shot in head for a quick drop,can you organ shoot 30 caliber ethically? How about distance?? Under 50 yards 50-75 yards or 75,100 or more ? And hog size ???? Smaller good eating size?or big boar or sow 200lbs +?? Would like to hear about it 30 caliber