I haven't, but its a fact, but, the 9mm can still be a highly effective round, but in a serious situation, where your own life or the safety of your family is in question, adrenaline along with a moving target who may be firing on you, an accurate shot, especially a headshot is very hard to make, therefore, the slow and heavier rounds, hitting anywhere on the target is going to do extremely more damage, whereas a 9 could take several hits before incapacitating the target.