My slug gun throws a 600grn .72 cal lead slug at 3,000 ft/lbs of energy and a butt load of momentum. I shot a deer this year at 20 yards put a hole the size of a quarter all the way thru it taking out the lungs and the heart. It still ran 100 yards.

Here is link to a study done by the SC DNR

South Carolina DNR Game Study

I personally wouldn't pick a ballistic tip bullet, but they seemed to have good results with the softer type bullets.

Paul