Any place is a good place, but the best place is in my opion is right here.
I have dropped many a big boar with the .223 shot right there.
Keep in mind that the vitals of a hog tend to be lower and farther forward than you would think if you are comparing to a deer. If you are going for typical "behind the shoulder" shot you would for a deer, as you can see you may be farther back than you think and in an area that will probably kill it, but it may run a long way first.

I have dropped many a big boar with the .223 shot right there.
Keep in mind that the vitals of a hog tend to be lower and farther forward than you would think if you are comparing to a deer. If you are going for typical "behind the shoulder" shot you would for a deer, as you can see you may be farther back than you think and in an area that will probably kill it, but it may run a long way first.
