I have a gen3 glock 20. i worked up some 200gn hp/xtp loads for hunting. i chronied them at 1174fps. i got a shot on a small doe 2 years ago. i was in a tentblind in an old clearcut. the deer wasnt 15yards from me when i shot it. hit her behind the front shoulder and ended up almost coming out the other front shoulder. she vaulted straight up in the air about 3 feet and plopped down spreadeagle on the ground dead as a doorknob. im a 10mm believer.