I wish I had a dime for everytime someone asks a simple question someone else ususaly has to put in their "Look up the SEARCH" comment. Why can't a person ask a question to get the most recent answers instead of getting the same old answers? Me myself would want the most updated responses from some of the older and newer members instead of what was posted 10 years ago. As far as between the 9 & the .40 I would go with the .40, maybe it would have a little more energy. But if you still can't decide take what you can shoot the best and go fron there. Good Luck!!!