Handgun ammunition stopping power is a topic that will be debated without resolution until the end of time. For the best practical analysis that I've seen, I'd suggest picking up a copy of Stopping Power: A Practical Analysis of the Latest Handgun Ammunition (http://www.amazon.com/Stopping-Power-Pr ... 58160128X/)govnor wrote:
I've been wondering what the defensive advantage is of a .40 over a 9mm. I notice that the .40 has a lot more punch to it than the nine when I shoot them side by side. Anyone know the advantages, disadvantages?
-Xander