With modern 9mm loadings, I don't see the need for a .45 in a concealed carry handgun.
You just can't replace that sectional density. And kinetic energy.
Wayne, I respectfully disagree. On sectional density, that can be matched to the common .45 ACP loads with common 9x19 loads. The 9 may not quite make the top end .45ACP KE numbers, but they are certainly capable of getting into the same ballpark as most .45ACP loads.
If you are talking momentum, then yes, I agree because there is no replacement for mass in that equation.
That said, the 9x19 covers a lot of bases today, and especially firepower when threats are more likely than ever to be in multiples and damned well armed.
