I have two friends that hunt with .243's. One shoots Winchester Power Points, and has no issues dropping deer if he hits it well. The other started out shooting Winchester Power Points, but he later switched to Hornady 95 Grain SST's as he said he tried a few rounds and it did the most damage and did the best job on deer. These are not the Super Performance ones, but the regular one. The guy with the SST's has dropped several deer over the last couple of years with his. The other guy has dropped 2 that I know of, but those are the only two he shot with this .243.