The photos in the web sight previously listed are pretty accurate.A 250 grain shockwave should be perfect for hogs with 100 grains up to 150 grains of powder. I was more surprised at the way a hogs spine takes that downward dip. A muzzleloader would be plenty to take any hog in this state. Ive had to chase a large hog in excess of 300 lbs that was hit behind the shoulder with a 30-06. We had to track it over a mile before finding it. Place your shots midway of the areas between the ear and shoulder. If you are looking for a heart and double lunge hit, center punch the shoulder just above where the leg crosses the belly of the pig. That should be an instantaneous drop. Spine hits are also the same. Head shots are tricky. Quartering away shots snugged up behing the shoulder are excellent.