NVMIKE I read that article too. Many years ago I worked with a group that did that kind of studies. It does give one explaination for what we have all seen happen. That is for an animal to keep going after shot after shot hits them and the next one drops like a rock after one shot from even a smaller weapon. It goes to show that everyone here is right to an extent. There are many many factors that come into play. The most certain is going back to useing the right bullet with enough power behind it to drive it to and through something vital and most important, It can't do the job without proper shot placement. This is absolutely the number one priority.