Most Americans actually know very little about guns. Hollywood writers realized this a long time ago and, being writers, used it as an excuse to never do any fact-checking ever again.
#5. Silencers Turn Gunfire Into a Gentle Whisper
Where You've Seen It:
In The Line Of Fire, Die Hard 2, No Country For Old Men, Shooter, practically every James Bond movie.
The Myth:
Cautious spies and assassins know that if you're going to take out a bad guy in an office or a library, be sure to use a silencer. It turns the concussive "bang" into a neutered "ptew." Itty-bitty handguns aren't the only things you can silence. Giant freaking shotguns can even be fitted with a special silencer that renders them inaudible in quiet suburban neighborhoods.
Also, while silencers look all slick and expensive and fancy, Hollywood says pretty much any long, hollow tube will do the job. Grab a two-liter, stuff it with socks or something, and you can be just as dangerous as Mark Wahlberg in Shooter.
The Problem:
Exploding gunpowder is loud. Really loud. As loud as a jet engine. A little metal tube won't do a whole lot to stop that. This is what a suppressed handgun actually sounds like:
Video example
http://www.youtube.com/watch?v=51AEuOts1YU&feature=player_embedded
If you can't watch the video, let us sum it up: It still sounds like a freaking handgun. It does not make a soft phut that you could mistake for a kitten landing on a pillow.
An unsilenced gunshot is around 140 to 160 decibels--that's in the range where hearing it once can permanently damage your ears. If you've never had a gun go off next to you, trust us when we say it's loud enough that your whole body will flinch at the sound of it. A silencer can get that all the way down to 120 or 130 decibles, aka the sound of a jackhammer. Still loud enough to cause physical pain if it's close enough to you.
So a silencer really just makes a large gun sound like a smaller gun. If you're James Bond and are sneaking into the enemy's compound with a silenced pistol, you're basically hoping the guards will decide your gun is too small and wimpy to be a serious threat, and leave you be.
#4. Machine Guns are Magical Death Machines
Where You've Seen It:
Starship Troopers, The Mummy, Max Payne, Commando, every John Woo movie, Scarface.
The Myth:
It's an old joke by now that nobody runs out of bullets in action movies (unless it's suddenly convenient to the plot, that is). Hollywood shows some restraint with revolvers--usually no more than 10 or 11 shots per six-shot cylinder--but damn, do they go hog-wild with anything that fires full-auto. So much so that that most of us have wound up with an utterly ridiculous concept of how those guns work. They're seriously depicting these things firing a hundred times more bullets than they can actually hold.
Because you can't actually see the bullets in a machine gun, Hollywood takes this as a blank check to treat the inside of a gun as a magical bullet factory. So in Commando we see Arnold fire without changing magazines for what seems like half the movie:
Video Example:
http://www.youtube.com/watch?v=D307Lp_idbk&feature=player_embedded
The Problem:
If you've watched a news broadcast about U.S. troops in Iraq, or played Modern Warfare, you've seen this gun:
That's an M4 Carbine. It holds 30 bullets. Here is a video of a small child firing one of those on full-auto:
Video Example:
http://www.youtube.com/watch?v=mchVNcme9Os&feature=player_embedded
He didn't give up after four seconds because he got tired. He was out of bullets. OK, how about the gun you always see the bad guys using, the AK-47?
Again, empty after four seconds. That's because fully-automatic weapons fire really goddamn fast--around 700 rounds a minute. Only you don't have 700 rounds in the gun, you have 30. So, do the math.
In fact, a U.S. infantryman only carries 210 rounds total, which means a battle conducted with full-auto machine gun fire would be over in less than a minute even if you count the time it takes to switch magazines. Fortunately, they fire on full-auto so rarely that many of the military's rifles don't even have that capability.
"But wait!" you say, "I've seen war footage from Vietnam and Iraq and everywhere else and you can totally hear machine fire chattering in the distance at all times. Somebody's using it, dammit!"
That's true, they're just not shooting people with it. Full-auto is only really used for suppression, that is, to make the bad guys duck their heads and hunker down while your people maneuver into position. In fact, virtually all bullets are used for this. For each insurgent killed in Iraq and Afghanistan, 250,000 shots are fired that hit absolutely nothing. About three tons of ammunition for every one dude killed. Picture Arnold lugging that around.
#3. Bulletproof Vests Are Magical Force Fields
Somehow your best laid plans have gone awry, and now a bunch of Libyans in a Volkswagen van are out for your blood. They plan to shoot you repeatedly with their AK-47s, but you have an ace in the hole: a bulletproof vest.
In movies, body armor (made from a material called Kevlar) turns most guns from magical death-wands to hilariously overbuilt Airsoft rifles. A burst of fire from an AK-47 at point-blank range would turn most men's torsos into gooey paste suitable for spreading on crackers, but add a slab of Kevlar and you might as well have a Gandalf's magic protection bubble glowing around your torso.
The Problem:
In the real word, the vest that protected Back to the Future's Emmett Brown from the terrorists would only have been useful for its ability to keep all of his bits in one convenient (for the mortician) package. In fact, despite an additional 25 years of armor development, no body armor today would be able to protect Doc from that kind of assault.
The type of bulletproof vest you can actually conceal under your clothes provides exceptional protection against most handguns. But against an assault rifle like the terrorists were using up there? It's only slightly more effective than body paint and prayers.
Our troops do have their own body armor, meant to protect against that sort of thing. It's much heavier and more rigid. But even it's only rated for effectiveness at further than 14 meters distance. When police wear body armor (45 percent do not) they don't tend to wear full military body armor. Probably because it weighs 33 freaking pounds and costs thousands of dollars. Since less than one percent of gun crimes involve military-style rifles, this is generally a pretty safe trade-off.
#2. Gratuitous Cocking
Where You've Seen It:
Boondock Saints, Die Hard, Reservoir Dogs, all the movies on this list.
The Myth:
Movies treat the cocking of a gun like an exclamation point. When Hardass McBadCop interrogates the lone surviving henchman, you can safely assume that, at some point, he's going to make his gun go "clickety-clack" to let the poor schmuck know he means business. The sound of a clicking gun is so ominous that the MacManus brothers use it to close out their fruity little prayer in Boondock Saints:
The Problem:
That "click" is the sound of a hammer being cocked back, and movies seem to be saying, "This means the gun is ready to fire now, baby!" It doesn't mean that, however. It doesn't mean anything. The gun was already good to go.
For instance, the guns our hunky Irish assassins are using up there (the Beretta 92F--the same gun John McClane uses in Die Hard), is made so that pulling the trigger also cocks the hammer for you, to save you the extra step and the extra two seconds during which you could get shot. The "cocking the gun to show you mean business" must date back to Westerns, back when those old revolvers forced you to cock them between each shot (something that was made obsolete 150 years ago--so, yeah, Hollywood is even slower to catch up with gun technology than they are computers).
By the way, when you fire one of these guns like the Saints have up there, it's made so that it leaves the hammer cocked back in between shots (the reason is it makes the trigger a little easier to pull). We bring this up because that means the MacManus brothers purposefully de-cocked their guns before shooting that mobster, just so they could make that sound.
It gets sillier. When movies show somebody with a gun that doesn't have a hammer back there to be cocked (like a shotgun or assault rifle) they substitute either the pumping of the shotgun or pulling back the slide on the automatic. It's the only way to get a cool clicking sound for dramatic effect.
The problem is that on these guns, that only serves the purpose of ejecting an empty shell and sliding a new bullet into the chamber--something that already happened the last time you fired it. So every cool "click" would be accompanied by the somewhat-less cool sound of one of your perfectly good bullets falling to the floor.
#1. Bullets Explode Everything
Where You've Seen It:
Jaws, Casino Royale, Matrix Reloaded.
The Myth:
In the movies, bullets and anything mildly flammable have a matter/anti-matter relationship. The second hot lead touches a car's gas tank, it and everyone inside are going up in flames. This is incredibly convenient for those times when Morpheus needs to flash-fry two creepy dreadlocked albinos or a Buick full of raw bacon.
Propane, hydrogen and oxygen work the same way. As long as it is packed in a pressurized metal cylinder, you can be sure shooting it will result in an explosion large enough to blow through any jam the screenwriter gets the protagonist into. Shoot an oxygen tank in a shark's mouth and he'll blow like he's spent all week munching on dynamite.
The Problem:
The manufacturers of automobiles and pressurized containers really don't like liability lawsuits. If their products could be turned into a fireball the size of a city block with nothing more than a sudden impact or puncture, every car accident would look like the Fourth of July, every pile-up would look like a Michael Bay movie.
The Mythbusters famously demonstrated the falsehood of both the "shoot the gas tank" myth and a ton of other gun myths in two of their episodes. As it turns out, you actually have to coax a car into exploding by doing things in a very particular way. If you can punch a small hole in the tank, light a fire outside of it, and vaporize the gas inside to the point that the tank over-pressurizes, then you could probably get it to light. Assuming you use special tracer bullets.
What's so illogical about Hollywood's "handguns can explode a car" principle is that their bullets can't penetrate anything else. Here's John Cusack hiding behind a shelf of potato chips at a convenience store, safe from the dozens of bullets slamming into them:
And if the good guy takes cover behind a car door? Hell, he might as well be holed up in Fort Knox. Ironically, while guns are useless for exploding a gas tank, they'll punch through a car door with ease.
Everything we know is wrong. If those of us raised on action movies ever have to fend off a Red Dawn-style invasion, it's going to be a total loss.
http://www.cracked.com/article_18576_5-ridiculous-gun-myths-everyone-believes-thanks-to-movies.html
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