is Why Cooper INSISTED that we use the ballistic pendulum to MAKE guys compete with at LEAST 9x19 levels of cartridge power, and why the target-scorings are set up to favor the .45 "major" caliber loads, in IPSC. Nowadays, the "power" needed to "make major" is so wussy that the 5" 9mm can make it easily,by using 158 gr lrn ammo. All they need to attain is 1050 fps, and that's easily done, with AA#7