I own (2) 40 cal pistols one is a Glock 23 and the other is a Beretta 96 which I have owned for over 2 years now and have never put a round through it. I prefer the 357 sig over the 40. I hear a lot of Police departments and Federal agencies are changing back to 9mm. Just asking what your opinion is on the 40 and why you like or dislike that caliber and do you use it as your concealed carry. Just curious.