Dicion had limited his remarks to .45 rounds, and so did I.KD5NRH wrote:One round in one spot maybe, but the Buick O' Truth shows that multiple 9mm rounds will do the job. http://www.theboxotruth.com/docs/buickot3_2.htm" onclick="window.open(this.href);return false;Excaliber wrote:I'd skip the "shoot through my door" part. Doors are full of all kinds of things that will stop a bullet - window cranks or motors, lock mechanisms, and side impact reinforcing panels. Even if a round made it through your door, it almost certainly wouldn't make it through his. None of my .45 rounds ever made it through 2 car doors when I was doing testing.
I'm familiar with the buick'o truth test, and I've done similar tests as well. The photo of the entry holes shows they were knowledgeably placed to avoid the internal obstacles I mentioned. From the exit holes, I would suspect that the rounds used were FMJ which certainly enhances penetration, but such ammo is rarely carried as a personal defense round by knowledgeable people for reasons thoroughly discussed in other threads here. That test also doesn't contain any data on the remaining energy carried by the rounds after they passed through 4 layers of sheet metal. You can bet that their initial penetration rating and combat effectiveness was sharply reduced.
The issues of destroying your own hearing and potentially blinding yourself if your side window shatters from your shots is as true with the 9mm as with the .45. You could expect a homicide charge if one of those rounds sailed just over the antagonist's vehicle and took out a truck driver or a pedestrian on the other side. It would also be difficult in my mind to testify afterwards that you acted responsibly by shooting through the door when there are the problems of figuring out how you aim accurately through an opaque metal door, and trying to predict where a bullet that has gone through one car door will go (note the group patterns on the entry and exit holes in the buick o' truth test.)
If it were me in the situation, I'd leave the gun in the holster and drive out of Dodge.