First let me say that my favorite round is the 45 acp. I have a Kimber CDP and a Glock 26 with a +2 extension. I perfer the Glock for ccw. When it comes to ccw the more rounds you have the better. You never know what you are going to encounter or where. One, two, or more perps? You have to be prepared as best you can and the more rounds you have the better. Shooting at targets is one thing but at people that are or may shoot at you is another. Thus you may miss more than you realize. Having more rounds is the way to go. Lastly, whom ever your shooting at has no idea and really doesnt care what caliber you are shooting at him with. He just cares that you are shooting at him and hes trying not to get hit. Look at ccw for what it is, you may have to pull out your weapon and actually use it, so you had better be prepared. I hope you never do!