Yes, and the 9mm aint it. In fact w hardball (which is all we were allowed to use even today, the Guards we have at our bases still use 9mm ball) our guys in the sand were scurrying around for old 45 out of the Crane Indiana arsenal. While it may well be a suitable caliber with modern ammo, the whole reason the FBI went to the 10MM (then downgraded to the 40 S&W aka 10mm "light" because of females) was after the infamous Miami shootout where the agents had 9mm which proved to be a failure. I believe I'l stick to 45 ACP or 357 SIG.
There was a failure of one Winchester Silvertip. And that's questionable since the FBI didn't have any penetration requirements prior to 1986. But it was a very convenient scapegoat for the FBI who kinda had two guys kinda hand them their arses. By today's standards that 115 grain Silvertip in in adequate. But now with modern 124+P and 147's the 9mm routinely out-penetrates the .45 ACP.
The 9mm makes sense for the FBI, but it doesn't mean it makes sense for everyone. I still carry a .45 ACP.
