lemay,
I remember Second Chance, both the vests and the shooting games he sponsored.
I believe AP handgun ammo is still "banned" in Florida. Weird thing was you could legally own it AS LONG AS YOU NEVER PUT IT IN A GUN.
During the debates on AP ammo in FLorida, I was taking a Social Studies Education class trying to get a masters in Education. We had an assignment to "come up with something different" in the way of a graphic teaching aid about some then ongoing topic. I bought a pair of large blocks of modeling clay and shot one with a CZech immediately post WWII 9x19mm Iron cored round that was considered AP and the other with a Winchester Silver tip. I also brought in a panel from a IIA vest (don't recall if Second Chance or Safariland) in a frame that had a couple of pieces of 00 buck stuck to it still after a save from GPD.
Got a lively discussion going, even had a few anti's agree that it would be better to put the effort into buying the vests for small departments that might not be able to afford them otherwise than banning the less destructive ammo. Of course some immediately wanted to ban the HP ammo as a result of seeing the clay block almost blown in half as opposed to drilled through.
Somewhat earlier before it became an issue I had already defeated a Z9 panel test swatch Second Chance sent me that was supposed to stop 9x19mm from SMGs.......stopped modern NATO and US commercial stuff fine.....not the CZech iron stuff though!
I shot some KTW in a .357 when it first came out (the Teflon coated stuff) and I was a kid and it did penetrate more 55 gallon drum sides than the then "best thing for police" 140 SJ HP. I fired some of the Arcane French turned and hardened brass stuff in Europe, but did not get to test it against anything. I suspect something of an over pressure load as it made my sinus and teeth hurt at each shot! Supposedly it was capable of penitrating the turret of a BMP Soviet Infantry Fighting Vehicle at 25 meters. Here is a clue, if kBob were facing an eight man Soviet dismount team with six AKs and two RPK, one RPG 7V RPGL, an armored vehicle with a turret mounted 73 mm semi auto low velocity cannon with coax mounted 7.62x54R PKM belt fed and Sagger anti tank wire guided missile launcher......kBob would want a heck of a lot more than a .44 Mag revolver, regardless of ammo, thank you very much.
For readers of dead tree SF check out the Dune series, which had AI killer drones way back when.
-kBob