If you like the .40 by all means get the .40, but there's definitely something that rubs me the wrong way about the wannabes who get a .40 because the police carry it
This is not a bad means of choosing a caliber for someone that is not well versed in ballistics. For example, the FBI is
the authority on handgun ballistics; if they use it, it is good.
40 Smith... newer caliber(only released in 1999 or so?)
January 1990. The Glock models 22 and 23 were the first .40S&W pistols on the market, beating S&W themselves.
Also very high PRESSURE, stands to reason why if a Glock is gonna blow it is usually a .40.
The .40 is the same pressure as standard 9x19, and
much lower pressure than 9x19 +P or +P+. The reason .40 Glock's seem to experience catastrophic failures at a higher rate is because there is far more .40 Glock's in heavy use than any other pistols in the country (continent?)
Relatively cheap? Everywhere I've been .40 ammo is almost as much as .45.
.40 is $4-$6 more than 9x19 for target ammo, and the same, or cheaper for defensive loads here.
If you're only concerned with muzzle energy, why not get a .357 SIG or 10mm?
The .40 is superior to the .357 and equal to the FBI 10mm loads in terminal ballistics while fitting in a smaller, lighter, cheaper and more readily available pistol with cheaper and more available ammo with more variety.
.40 S&W is the answer to the question that never needed to be asked.
The FBI disagrees.
are only 9mms minimally modified to accept the larger cartridge.
The .40 models were given more than twelve minor and major alterations to the 9x19 design.
(the .40 hole is bored bigger, therefore the chamber & barrel sidewalls are thinner).
One of those alterations was to increase the barrel dimensions to alleviate such worries.