Because of the force of the initial shot (between the eyes) = the BG was blown backward and the clerk expended the remainder of the magazine into his body rapidfire as he was airborne backwards... in midair!
Unless I read that wrong, it meant the bad guy was lifted off of his feet and propelled backwards by the force of a .45 Auto round. He was shot once in the head and then was shot with the remaining rounds in the gun as he traveled through the air, or that the remaining rounds propelled him likewise. Quite frankly I think such would be magic. To keep others from believing in magic, on issues of life and death, where you or I are depending on our firearms and ammo to do the trick, I had to speak out. I cannot tolerate it when I here of the magical properties of bullets. There is no one type of pistol round that is going to perform FM (f'ing magic) and that is the truth! A .45 Auto bullet propelling someone through the air, as in lifting them off of their feet and pushing them backwards through the air, solely because of the bullet’s energy is magic. It is not going to happen. This is not Oz, Toyland, or Disney Land by a long shot and I for one do not believe in magic.
I challenge anyone, and I mean anyone, to document a normal.45 Auto round (and this would include a round loaded to the maximum powder charge) that has the capability of lifting a man, or any similarly weighted object, airborne solely because of the energy that the round gives off. It in all likelihood has not happened and will not happen and, I will explain why I know this for a fact. As the round leaves the gun, it is pushed forward, but guess what - the same energy that pushes it forward also pushes back. Yes the very same energy, with the very same amount of force. This energy is felt on the shooter’s end as recoil. Why doesn't the shooter go airborne? While recoil may do a lot of things I have never, in over 15 years as a firearms instructor, seen a .45 AUTO round’s recoil send a shooter airborne; nor do I think I ever will. While I have seen animals shot with a .45 Auto (no they did not go airborne either), I have never seen a man shot with a .45 AUTO, but I have read reports and have talked to shooters who shot people. Some of them have shot lots of people in wartime, some one or two (or more) as law enforcement officers. They did not see it either. In fact shooters who have shot people with a 12 gauge slug have not seen it. Nor have others I know seen it, who have shot multiple enemies with a 30 caliber machine gun. That junk, and I do mean absolute junk in my opinion, is from the movies and books created by someone with vivid imaginations. It should stay just there - in fiction!
Any person shot who goes airborne does so for other reasons than because of the energy imparted by a .45AUTO round. For instance, they go airborne because they fell backwards and lost their footing due to muscular reaction upon being shot, or they go airborne because their body goes into a spasm and they kick out their legs (again a muscular reaction), or they go airborne because just about at the same time the bullet hits them they decided to try to jump out of the way. Now if you don’t believe me, then try an experiment for yourself: Take an object – any object (no not a live person or a live animal – that would be against the law - so make sure it is an inanimate object) that weighs in at 150 pounds, the weight of a light man. Shoot it full of holes with the .45 Auto ammo of your choosing. See what happens. Then let me know how many times the object went airborne due solely to the energy given off by a .45 Auto round. Then try with other objects and reduce the weight by 10 pounds each time. Let me know when you get to the point where the object goes airborne because it was hit by a 45 round fired from a pistol or even a carbine. I don’t mean let me know when you push it a few inches on a table and it goes airborne when it falls off of the table either. Let me know when it is actually propelled through the air like you see in the movies - even just a little bit -because of the force of the bullet. The truth of the matter is that the most energy a pistol round can impart on the object shot is the amount of energy it had when it left the muzzle and that was the same energy felt in the recoil. Actually, it usually – and this is in the great majority of cases (like virtually all of them where the muzzle is not touching the target) – imparts less energy than it had as it left the muzzle once it hits the target. You see as that round moves through the air it loses energy on the way to the target – that is physics pure and simple; you know things like gravity, and air resistance. Of course, over a limited range, it can penetrate because of its size and shape and velocity and because it retains sufficient energy to do so. It can then transfer energy into what was hit, but no man is going to be propelled through the air from just the energy alone that is given off by a .45 caliber round. It may make someone jerk or spasm, as I said, but remember if there are no muscle reactions there are no spasms and may only be a little jerking or pushing but certainly none sufficient to lift a man into the air. Heck, I could slowly and gently stick a needle in your behind and make you jerk or spasm and maybe even to get you to jump in the air but it would not be the actual energy given off by the needle that does that, but rather is mainly due to your nervous and muscular reactions to the pain and shock and the energy you expende in reaction to the needle. A .45 Auto may make them fall, it may cause their insides to hemorrhage, it may cause shock but; if you think a shot will put a guy in the air just because of the energy it gives off you need to change over to bazookas or give up guns altogether. That stands whether or not the bullet passes through or stays inside the guy who gets shot!
As to the original question, give me a bullet that goes in, expands into a nice mushroom or fragments, or tumbles around nicely and then stops just about a ½ to an inch short of causing an exit wound. Keep in mind I am talking about regular and commercially available bullets fired from conventional firearms of the type one would choose to carry under normal circumstances. Besides leaving all of its energy inside the person who is shot, it is also left itself behind (all of its density). That little piece of copper jacketed lead is in there, and if a bad guy who was shot tries to move around to try to kill you, that little hunk of metal may do further damage as it is pushed around by muscular activity. That could be a good thing! Sure you can shoot someone once and bring him down, or shoot many times (all hits) and possibly still not bring him down. I shot a guy once (yes the only time and once is enough but I would not hesitate to do it again) who got five bullet holes from a single bullet I fired at him - three entries and two exits. He did not go down - but instead ran away pretty darned fast. I was later amazed to find the bullet hit him in the right thigh, exited the thigh and then entered his sack, exited the sack (I rang his bells) and then entered the left thigh where it traveled down to near the knee resting on an artery. The doctors were amazed of how chewed up the area around the bullet was because he had run with it in there. I only say too bad it did not cut an artery and let him bleed to death. As it is maybe he is sterile, and I am hopeful that during electrical storms he gets a nice tingle now and then, and that he will develop arthritis.
I just think though, that you want the odds to be in your favor, and the odds are possibly more in your favor, in my opinion, when the bullet stays inside with the possibility of it doing more damage on a guy who does not go down immediately. If it does not kill him, and he runs away, maybe he will at least carry a reminder not to be such a jerk in the future. Of course you always have to be ready for the guy not to go down, or to run away, but rather to keep on firing or coming at you. Be ready.