I really can't put my finger on why, but I have never been a fan of the 40 S&W.
Admittedly, my only avenue of experience with the cartridge has been by way of Glocks, but I never felt it was as accurate at either the 9mm or the 45.
Obviously, the recoil impulse of the 40 is greater than the 9mm, but what I have also found, is that it is "Snappier" than a 45.
If I was most concerned with high capacity, I'd be happy with the 9mm. Today's ammunition makes it anything but wimpy. If I were looking for bigger bullets, I'd take flight with the proven 45 and never look back.
For me, the 40 is neither fish nor fowl.
What he said, ^^^, for the most part.
I'd also add that you should go try out a G-23 or an M&P in 40 S&W before you buy it.
(Hint: According to the guy I know who runs a shop & range, G-23's & 27's are the two most traded in guns around)
MM
