Howdy, new guy here. Just wanted to share some of my experiences with the 10mm. I have been working with various components and would like to share some trends that I have noticed... the best performing combination has been 180grain gold dot hollow point over enough 800x to push it to around 1,450 fps. This velocity out of my 3rd gen glock 20 6" lone wolf barrel penetrates right at 14" of gel with and thus deposits its aprx 840lbs on energy into the target. Take a look at this animal that was taken in Young County, Texas. first shot entered behind the right front leg and the second impacted in the armpit on the same side. Heart and lungs were basically jelly and both slugs were recovered just below the skin on the opposite side. This pig was 7feet long as we measured it from hooves to snout while hanging from this tractor. we did not have a scale large enough to weigh the beast, but look at the expansion from these two rounds compared to this man's size 11.5 ring. Same story with whitetails, and other mammals. since the 10mm is .400 diam, components are relatively inexpensive. the G20 holds 15+1 rounds of 10mm, is it the best combat handgun for a reloader? Wanna kill these ads? We can help!