PABOWHNTR, expandables are not reccomended for larger hogs but I have take hogs around the hundred pound mark with expandables and have had complete pass through and a very quick kill. The main problem with expandable heads are when you dont get complete pass through. A hog has a very thick layer of fat and long hair that will seal the small entrance wound produced by an expandable head very quickly making tracking difficult. As far as KE, if you are getting at least in the high fifties, and can gat a broadside or very slight quartering away shot you should be fine.