I have no data to back me up, but I believe the Treasury Load came out of a combination of loving the "high-velocity/energy theory" of stopping power, along with a desire to have high performance with lower recoil.
It is an interesting round from a historical standpoint. The Illinois State Police was the first state-level police agency to convert to semi-auto pistols back in the late 60s or so, and they issued a similar round in 9mm (115gr JHP +P+), which was also very ineffective.
I've never understood the "high-energy" theory of stopping power. If the round doesn't have enough energy to knock the shooter over, it won't have enough to knock over a bad guy. Yet, that seems to be what people expect... I've got a picture somewhere of a guy on PCP who was shot by 2 Ill. State Troopers approximately 35 times with the above-mentioned 9mm load, and he wasn't stopped until the second 12ga slug severed his spine. That said, none of the 9mms hit the central nervous system, but they were all torso shots... Poor penetration, mediocre shot placement, and meaningless "energy transfer" made that situation very ugly for awhile...
I would bet the Treasury load would be equally problematic. Coolness and the luxury of some time under pressure to provide excellent shot placement, and a 22 will work, so the Treasury Load is NOT worthless, but IMO you could do better out of a 38 with the FBI load (158gr LSWC-HP).
It doesn't knock them over. It stuns the nervous system in some people with some shots. No, energy isn't 100% certain because every shot is different, as is every shootee. That's the same reason relying on a large crush cavity isn't 100% either.I've never understood the "high-energy" theory of stopping power. If the round doesn't have enough energy to knock the shooter over, it won't have enough to knock over a bad guy.
You need to re-check your facts.
Both Federal and Winchester designed the 9mm 115JHP+P+ specifically for ISP and both loads were extremely effective in actual shootings. DeKaleb County, GA, still uses the Federal load (9BPLE) with continued success.
USBP's 357Mag 110JHP was also effective in actual shootings, and one of the major reasons that the USBP went to the 9BPLE is because it performed the closest to their issued 357Mag load in actual shootings.
The picture of the shooting you are referring to appeared in the Caliber Press Street Survival book. The issued ISP load in use at the time was NOT the 115JHP+P+, but rather the Winchester 100gr "Power Point" round nosed jacketed softpoint. The 100JSP bullets acted just like FMJ bullets with many of them overpenetrating and exiting. So the 100JSP had plenty of penetration.
I have chroned some of the +P+ loads
out of s&w 637 38 special 2 inch barrel
win +P+ 110 jhp = 1003 fps
fed +P+ 110 jhp = 994 fps
fed +P+ 147 hydra shok 841 fps
hope this helps some
Jason