[QUOTE="fredj338, post: 27883842, member: 40165" Very few people will carry a 9mm with marginal 115gr JHP @ 1100fps. Most will carry a 124gr or 147gr bullets that produce nearly the same ME & expand nearly the same & penetrate nearly the same as 180gr 40. View: https://www.youtube.com/watch?v=zDA52PzdOsU[/QUOTE] Huh? Based on the tests I’ve seen, 124gr 9mm hollow points expand to about .5 in, while 180gr 40 cal hollow points expand to about .7 in. That’s a 40% larger diameter, and the area is almost twice as large, .79 in sq vs. 1.54 in sq. How is that “almost the same? A 147 grain 9mm jhp will expand to closer to the size of a 180 grain 40, and they will have similar velocities, but the 9mm will have about 100 ft lbs less energy at the muzzle.