Sectional Density (SD) means nothing if the bullet does not stay together. Many older style bullets did not stay together so it did not mater how much SD they had. New well constructed premium bulets have the best of both worlds they stay together, and with higher SD they are almost unstopable when it comes to busting through tough bone and heavy muscle.

I am a firm believer of heavy fast bullets, (or even heavy slower bullets at short ranges), rather than light fast bulets. I do not want to leave nothing to chance when it comes to killing a game animal. We owe these animals which we hunt that much respect. To some people a heavy bullet is not necessary, but to me they are. An animal can never be to dead. Good luck.