Today I Chrony'd some hot loads and boy was I surprised. I was Shooting my Smith & Wesson M&P 40 cal.... 188 grain jhp's with The BTSniper notch die. Now I don't know how to accurately measure the ogive and I know some people have a more missile like nose on their 9mm to 40 cal boolits than I do...mine I decided on a blockier design with a deeper and wider hollow point...with what I call a medium depth notch....so think of the Hornady XTP depth notch but with the lead extending to the very edge of the brass and making a squarish meplat.
So I load some WCC stamped 40 brass with 5.5grains of Bullseye which I worked up from 4.9 grains...which the Never Exceed listing in a few books was 5.4 grains of Bullseye. At 5.4 grains on a 190 grain jacketed bullet....should be about 955 feet per second or so. However, mine at 5.5 were pushing 1020 fps with rarely more than 1fps deviation after more than 100 rounds down range. My boolits were very consistent in both velocity and accuracy with some silly tight groupings at 50 yards. M&P was fired from a vice..since it isn't my Chrony.
Chrony was set at 15 feet. Conditions were a beautiful 90F with no wind and no clouds.