Is Water Bulletproof?

Is Water Bulletproof? thefab.co/debunked Start building your ideal daily routine! The first 500 people who click on the link will get 25% OFF on Fabulous Premium. Join us as we explore the physics behind Bulletproof Water!
#debunked #ballistics #survivalfacts #moviemyths
CHAPTER POINTS
0:00 - Intro
0:39 - Bullets Through Air VS Bullets Through Water
2:20 - Bullets Shot At Shallow Angles
3:02 - Fabulous!
4:26 - Bullets Shot At Steep Angles
4:57 - Firing A .223 and a .50 Caliber Bullet Into Water
5:48 - High Velocity VS Low Velocity Bullets
6:58 - 9mm Bullets Shot Into Water
7:20 - Shooting Guns/Bullets Underwater
09:51 - Underwater Guns!
11:05 - Underwater Supercavitating Rounds
11:53 - End
CREDITS: Stu K - Producer | Researcher | Writer | Illustrator | Presenter
Jacob T - Researcher | Writer
Ross G - Editor | Animator | Illustrator
Ian W - Scientific Advisor
Robin M - Guest VO
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[@DebunkedOfficial]

Do Cars Really Explode Like The Movies? DEBUNKED kzbin.info/www/bejne/Z5qoc3ZjfpWpmNUsi=eRxIIYfVZ0CgQuXP

[@oldmandoinghighkicksonlyin1368]

Maybe all American schools should now be entirely aquatic.

[@curiodyssey3867]

oof

[@more_lali9042]

oof

[@7stiano123]

oof

[@bennettfriesen33]

oof

[@albatrosspussy]

Oof

[@matthiasschleidenhorn159]

This video saved my life. I was watching this to decide whether or not to jump in the water to escape my assailants and they ended up watching this video with me. Thanks buddy 👍

[@DebunkedOfficial]

Glad to help 😉

[@tejakarri7574]

R.I.P

[@444limm]

i wasn't expecting the last haft

[@FranckLarsen]

😆Amazing! 🥰🤩

[@yeltsinivancamacholam7636]

are you american school student?

[@johnrussell5245]

One advantage of being a target underwater is that, due to diffraction that bends light, you don't appear to be where the shooter thinks you are. Assuming the bullet can travel through water, the bullet is therefore likely to pass over your head.

[@ryanmaris1917]

Except most trained shooters aim center of mass not for your head.

[@user-vt2cr8qd1b]

@@ryanmaris1917 even still it can cause them to miss

[@vasilestratan2524]

Unles he is a really shitty shooter

[@Neuvillete4.6]

​@@ryanmaris1917most criminals are not trained shooters

[@XxsniperxelitxomegaxlmaoxOwOxX]

@@Neuvillete4.6 id expect not trained shooters to be more likely to shoot center of mass than trained ones.

[@TrueSighted]

My first martial arts master, was a south Korean who fought in the korean war. At one point he was captured by the enemy and imprisoned in one of their facilities. Then he escaped. Under fire, he managed to make it to the near by river. And jumped in, while they shot at him. He managed to get low enough fast enough that they could not catch him, and couldn't kill him, and managed to escape. He had the news paper from his country where he had been covered in the dojo if you knew where to look. So.. it can very much work, and save your life. He was living proof. Sadly he passed on a few years ago. The guy was a legend.

[@DebunkedOfficial]

Legend 💪

[@DebunkedOfficial]

And thanks for sharing his story 👍

[@kittycatmeowface]

what's his name?

[@TrueSighted]

@@kittycatmeowface Grand Master Tae Hong Choi.

[@ididntmeantoshootthatvietn5012]

@@TrueSighted i searched him on google, interesting guy

[@GLICKMIRE]

You have missed the possibility that firing a bullet through a barrel full of water could cause sufficient breech pressure for the gun to explode.

[@DebunkedOfficial]

You’re right, during another Mythbusters test they found a shotgun would explode when fired under water.

[@richardtheweaver4891]

And light refracts when entering the water, making aiming difficult.

[@lanz637]

Not if the handgun or rifle was loaded underwater. Breech pressure happens when there is air in the barrel. Besides shotguns weren't discussed in the video. They are way too short ranged a weapon

[@SJR_Media_Group]

If you value your face and fingers, it is not recommended to fire a pistol underwater. Exploding barrel can happen, and it makes for a real bad day for shooter.

[@lanz637]

@@SJR_Media_Group perhaps you've taken Mythbusters out of context. They didn't load the weapon underwater. This is what trained people are taught to do to avoid air expanding in the barrel and causing a barrel rupture. Not even a revolver will fail underwater if loaded underwater. By that mean charge with magazine, then rack the slide or for revolver, open and close the cylinder underwater after fully immersed.

[@Wil_Dasovich]

For some reason I feel safer after watching this, even tho Im most likely never going to be shot, plus being near water and needing to jump into it to escape 😂

[@concernedcitizen2249]

You never know....😮

[@justin9494]

omsim

[@tinup9077]

Vro I can’t even swim

[@Spin940]

You sure, bud?

[@funimonki4803]

If you live in America then it’s not that rare.

[@ThatsMrPencilneck2U]

Water is a good defense against most bullets. The problem is that you usually have to come up for air sooner rather than later.

[@ThatsMrPencilneck2U]

@Naes Galaxy What's your malfunction?

[@xmillion1704]

@@ThatsMrPencilneck2U Malfunction? Yours seems to be defensive hypersensitivity about a comment which sarcastically thanks you for describing a fact/problem which is blatantly obvious to virtually every human and breathing animal, experientially, from a very young age. You could have saved face by playing along and replying: _inhale hold_ "Yep, you're welcome, sometimes I remind myself to breathe." _exhale . . . repeat_

[@ThatsMrPencilneck2U]

@@xmillion1704 Nobody is going to hit the "Read more" button to read your insults. You have issues.

[@xmillion1704]

@@ThatsMrPencilneck2U Oh, man! As you have proven to be a reliable authority on all things, I'm particularly disheartened by this news.

[@McP1mpin]

​@@ThatsMrPencilneck2U I hit the 'read more' button and read his insults and frankly, I'm embarrassed for you.

[@cyan3714]

Guys, did you know that the speed a Bullet can travel through water, and the distance it is able to travel is highly dependent on the angle of entry?

[@DebunkedOfficial]

😆

[@elogeniumyt1338]

I wish I didn't understand it that way😁

[@diamondsmasher]

I vaguely recall hearing somewhere that the speed a bullet can travel through water, and the distance it is able to travel is highly dependent on the angle of entry.

[@thepinkchicken247]

And the velocity of said projectile!

[@alanrobinson4318]

Deeper equates to denser. Weight of water creates crush, increasing friction.

[@osagejon8972]

The bad guy shooting at you being underwater is probably not considering refraction from the water and therefore miss you even if the projectile could reach you. Consider when bow fishing one must aim below the visual target where angle and depth variables complicate matters.

[@DebunkedOfficial]

Extra credit for you 👌

[@lowandslow3939]

@@DebunkedOfficial I was going to point that out as well. Arrows, or bolts, from a crossbow will also penetrate the water much more effectively than bullets. I have done my share of shooting fish from a tree stand. In Vermont, US, there is a fish shooting season at Lake Champlain. You are allowed to use ANY type of weapon you like. Pistols, rifles, shotguns, bow and arrows or crossbows. Crossbows are the most effective. The lake floods the surrounding forest in the Spring to about 6-7 feet above the forest floor. It’s difficult to see fish and harder to hit them. The idea is to help reduce the number of invasive species that eat the eggs of native fish, thus killing off the “good fish”. A sunny day is a must. We use canoes to get to the areas we choose. It’s tuff going as you are not paddling as much as pulling yourself along by tree branches that also impede your movement as you move, suspended 6feet above the forest floor, by crystal clear water. It’s bizarre.

[@SupersuMC]

@@lowandslow3939 Sounds like a good time. :-)

[@lowandslow3939]

@@SupersuMC It is fun. We know of a small hill that becomes an island during the flood. We camp out there for a few days and shoot fish.

[@max_garcia]

I mean that’s true unless you are basically above your target. At that point aiming straight down is probably more than enough

[@slmemesfactory]

You didnt search for this , youtube recommended it 😂🖐️

[@ifareaged]

Out of nowhere too 😂😂

[@TheZaratustra12]

youtube knows our daily deeds and needs! every time I jump into water escaping the bullets (3-4 times a month) I doubt how safe it is, now I know it!

[@IceCar420]

Really out of nowhere with nothing to connect it to in my watch history

[@dimondavery8980]

& a year later 😅

[@joellangland7866]

That is true 😂

[@mikebauer6917]

In practice, pistols often use hollow point and other rapid expansion bullets, which would greatly reduce their water penetration.

[@RobertSmith-fd7ke]

eh fmjs are more common in handguns than hps tbh

[@MoonLiteNite]

@@RobertSmith-fd7ke What? only a very uneducated gun owner would be running with FMJs on a self defense handgun. I would make a good bet that 95% of people run with proper self defense hollow points. 4% who do have FMJ just failed to swap their mags/rounds out after target practice. And maybe the final 1% are just dumb are very cheap person who doesn't understand why a hollow point is 999x better than FMJ for personal protection.

[@RobertSmith-fd7ke]

@@MoonLiteNite yea except what you fail to realize is that the not all pistols are for self defense. there's a lot of people running uspsa and idpa matches with fmjs. there's also a lot of people at the range who are using cheap fmj ammo to practice. and even people who are carrying, a good amount of them are probably using fmjs

[@Truth4thetrue]

also they work by shattering upon impact so they'd probably shatter at first contact with water and be far less harmless

[@FalconWindblader]

@@Truth4thetrue Umm no. The likes of hollow points do NOT work by shatter upon impact. They work by breaking up easier AFTER PENETRATING their targets. A bullet that works by shattering upon hitting something would only leave bruises, not wounds.

[@darkbringer1440]

The premise makes it seem like the jumping in water tactic in movies and tv is about utilizing water resistance which is certainly not the case. They almost universally show the bullets travelling past the protagonist at decent speeds as if still lethal and under no greater resistance than in the air. The tactic in fiction is about breaking line of sight and/or using the current to escape faster than on foot.

[@xmillion1704]

Logic dictates that one assume that increased resistance through water is always one factor considered by rational individuals. The fact that one is able to easily follow the path of the bullet as it is passing through water indicates the much slower rate of travel, as compared through air, suggestive of greatly reduced potential for lethality.

[@bern9642]

That's very wrong. If I threw a bullet at you with my hands, it won't cause much harm. The bullets zipping past them is at slow speeds. If the bullet was moving fast enough you won't even see it zipping past them.

[@bluedistortions]

Yes, but nothing Hollywood does is realistic, particularly when guns are involved. "They've got AR15s!" -Captain America, seeing a fully automatic bullpup during the fierce AR-15 debates

[@DebunkedOfficial]

What Happens If You FALL THROUGH The CENTER of The EARTH?! DEBUNKED kzbin.info/www/bejne/d3TPmHZne7J4hc0

[@bagahbread]

Props to that guy for holding his breath for so long

[@2MeterLP]

Anything is bulletproof if you have enough of it.

[@eclipsewrecker]

Not according to call of duty….

[@darrelldemby3961]

😂

[@nicholascunningham6936]

So _not_ just like the simulations?

[@sky_pirate]

It's been a decade at least since last playing Call of Duty, and I still recall Soap (or whoever) escaping into water. So your meme comment or my memory are wrong.

[@eclipsewrecker]

@@sky_pirate “it’s been a decade…”

[@sky_pirate]

@@eclipsewrecker Fair point. Although I thought they started doing lazy remakes recently?

[@DebunkedOfficial]

Start building your ideal daily routine! thefab.co/debunked The first 500 people who click on the link will get 25% OFF on Fabulous Premium

[@thriquinox]

Jumps into water to dodge bullets Dies from drowning

[@farid-frederick]

Good news, we're 70% water so bye bye armor

[@jimmykrochmalska3501]

we're invincible and we never knew

[@DebunkedOfficial]

Would A BULLET Really KNOCK You BACKWARDS? DEBUNKED kzbin.info/www/bejne/mp_ZepqZYrWnadU

[@sednavaporeon7226]

Congratulations your the first person EVER to convince me to click an ad

[@DebunkedOfficial]

@@sednavaporeon7226 Thanks for watching and clicking! 😊 I hope you enjoyed both videos!

[@alto7183]

Buen video, en planetas habitables rocosos de 1.5g y 2.0g la gravedad y atmósfera reducen mucho los proyectiles, distancias de combate, peso de la munición, armas pesadas, metales, diseño de las armas de fuego y otras cosas, además como viaja más rápido el sonido te podría dejar sordo, rebelar tu posición más fácil, ser desviador por el aire los disparos y hasta alterar la óptica de las miras de francotiradores al grado de tener menos visión y distancia de combate, por lo que las civilizaciónes tipo 1 de planetas habitables rocosos de 1.5g y 2.0g desarrollan tecnología adaptada a estos obstáculos y límites de física por lo que desarrollan aleaciones ligeras y muy fuertes, otras tácticas de combate y en el caso de proyectiles, tipos de balas, tipos de armas de fuego más ligeros pero sobre todo si saben usar armas láser, plasma y si su sol y atmósferas permiten la luz y lupas de óptica como arma, como los inventos griegos y egipcios de la óptica aprovechando el sol en este caso su atmósfera y gravedad junto su estrella, por lo que al llegar al espacio saben usar bien sus cañones de sus naves espaciales sugerencia.

[@tomasinacovell4293]

Don't sound the "t" in "often"! ):

[@DebunkedOfficial]

@@tomasinacovell4293 apologies about that, it turns out I've often been speaking in 1500s English.

[@unsoundmethodology]

When my dad was in college, his zoology prof was specializing in salamanders, and a canyon in the mountains near the school was an area where there were species that hadn't been studied. He offered extra credit for bringing in specimens, but they were tiny and very hard to catch. But he told dad the trick to catching potential subjects: when you saw them in a stream, you shot at their heads with a .22 pistol. The water diffraction would displace your aim - enough that you'd miss and just stun them - and then you could just scoop them up easily. Dad stopped trying for extra credit after he shot the head off the third one.

[@ExploringworldwithSWAT]

😂😂

[@Incogneto1981]

Mythbusters did this! Its a great episode. Love this channel :)

[@Xcerptshow]

4:52

[@davehood2667]

As I recall they proved the best round to use against somebody in the water is 12 gauge slug.

[@StrikeNoir105E]

A lot of times when people are diving into water to avoid getting shot, it's not due to any thought of the water's effectiveness to stop bullets, but rather hiding and evading from enemies. Obviously seeing through water is a lot more difficult than seeing through air especially if you're diving into turbulent and/or murky water, and even if the water is crystal clear optical refraction and even just sheer water surface movement can make aiming at a person underwater difficult.

[@StuermischeTage]

Where you gonna hide though? You'll run out of oxygen almost instantly and can barely travel any distance in that short time.

[@thediamonddolphin687]

@@StuermischeTagemost people can hold their breath for at least a minute if they had to. If you jump from a bridge then you could swim under the bridge or if you’re able to wait a minute or two, their attack could be shut down by nearby civilians or they might run to avoid being caught by the police

[@gameweb1453]

I feel bad for people they are missing this awesome channel ❤️ I will support u till end

[@inshort58]

Well said 💪 DEBUNKERS UNITE!!!

[@gameweb1453]

@@inshort58 sometimes I think how can this channel be so underrated

[@DebunkedOfficial]

🤞this one gets out there!

[@marcelgrundmann9539]

no one ever mentioned or thought about that bullets on beach the landing in Normandy 1944 would zip through the water just as mentioned 20 feet or more at deadly speeds, that was due to the fact that the bullets been fired came from 800+m away before entering the water, hence bled off enough energy to enter at slower velocities, waves also contributed to varying angles when bullets hit the water. All experiments seem to be at short distances to the water surfaces with still water. Try 800m, 308 or .50 calibre into waves, and watch how far most of those travel. its incredible.

[@mikestone6078]

That's actually an interesting point and would make for a great Mythbusters follow-up epi... Oh, right. That's not a thing anymore. I almost forgot how old I am already ...

[@FalconWindblader]

Well, this is done under the premise of you being in your armed assailants' line of sight after all, which would mean within like 100m. Any assailants 800+m away would need scopes & binoculars to even locate you while you're standing still, making it practically impossible to shoot at you while you're running.

[@mikestone6078]

Listen, you can't get logic in the way of sciencing the shit out of questions like this. How else will we get something like Mythbusters again? We need the pressing, yet irrelevant wustions that can only be answered by blowing shit up and shooting guns in the sciency way. That's the path, mate.

[@FalconWindblader]

@@mikestone6078 I‘m gonna assume that you're replying to me so i'd reply to you. first of all, i ain't even “sciencing" anything. that's just plain common sense if you actually have an idea just how far 100m actually is. & then, guys like mythbusters go about proving things with a clear premise in mind, & for most of the time, scenarios that're likely to happen in the first place, be it in real life or in fictional settings, regardless of how far-fetched said scenarios would be for most people. In this case, the premise at hand is having assailants chasing you trying to gun you down, & you jump into bodies of water to escape. at distances like 800+m, said assailants would already be sniping you instead, bodies of water involved or not. if you wanna set up such a premise of you dodging sniper shots by jumping into water, sure. but assailants chasing & shooting at you from 800+m away? that's not even bizarre & unlikely, that's just senseless & stupid. a pistol round would have lost so much kinetic energy in that kind of distance that it ain't gonna be able to even graze you, even if it even manages to touch you.

[@mikestone6078]

@@FalconWindblader Yeah, I replied to you. And you gotta see that the premise at hand is that the world direly needs to see what would happen in a test of the viability of long range into-the-water shooting. Things like realism MUST sometimes stand back in the spirit of we-need-to-see-this-on-screen. That's the higher pur-premise-pose of this. And I need you on our side in this matter. Give up your resistance and sense of realism. crank your suspension of disbelief up to eleven. Heck, even beyond that. Humanity needs you to be a child again just this once.

[@ihcterra4625]

It also depends on the geometry and construction of the tip of the bullet. Some are designed to penetrate far more than others. Hyper cavitation bullets, usually designed for big game animals, penetrate dozens of feet through a fluid environment. Expanding bullets like hollow points or soft point bullets penetrate usually less than 2 feet. Full metal jacket bullets are in between. It also depends on the stability of the bullet. A very stable bullet just goes straight through. An unstable bullet will turn sideways like the .223 bullets that tend to yaw because they are long and skinny. Going sideways through the water dumps more energy and breaks up the bullet to create more surface area to create more even more drag. 9 mm are short and fat. If they are full metal jacket, the penetrate a few feet. If they are hollow points, they will probably penetrate only a foot or so.

[@JathTech]

This was surprisingly well researched. Well done!

[@bryangrote8781]

Interesting that flat point bullets have a cavitation effect that reduces their resistance through water. This is exactly why torpedos usually have a blunt nose. I believe it also reduces the chance of water causing the torpedo (or bullet) to change direction rather than running straight as water pushing differently on one side of a round or pointed nose causes it to start to veer to one side and circle back on itself or with bullets, start to tumble. A flat point causes the nose to try to “normalize” its trajectory and continue in the direction it was fired. Seen this effect on quite a few times in ballistic gelatin as well.

[@DrYeet2704]

Now that you say that, I wonder if that’s why submarines have rounded noses instead of pointed noses…

[@wolf310ii]

Normal torpedos dont use cavitation, they have round nose because its hydrodynamic the best form, a pointy nose like a rifle bullet would need more energy to keep the speed. The flat nose is needed so the hydrophone can hear, water rushing at high speed direct over the hydrophon would make it deaf. The flat nose creates a bulb of still water in front of the torpedo. Torpedos that use super cavitation have a nose like a rifle bullet with a small flat tip and rocket propulsion.

[@jangy36]

When you are in water, there is a high chance the shooter will miss because of the refraction. It will show your image somewhere when you’re actually not there.

[@JC-qg1qd]

wait but u r a girl, how u know this? girls r bad swimmer!

[@gyrateful]

We shot into water at a 60 degree angle, while watching from about underwater. Cavitation was: 9 pistol, 200 cm; 22 rifle, 300 cm; two-two-three mini14, about 1 meter (metal jacket flattened slowly fell to the bottom); 308, 2 meters of cavitation and a pressure wave that you could strongly feel at the 8 meters we were from the point-of-entry. I was young and dumb back then. Now I'm old and dumb, and I'd do it again. For the 308 or bigger, I would guess that if you were less the 1 meter under, at a steep angle, you would be knocked out from the concussive force, even if the bullet missed you. I wonder how strong a shock-wave per distance would be for a stick of dyn-o-mite and a anti-sub charge.

[@OnTheRiver66]

Jacques Cousteau tested this and found that the explosion would hurt you if you were above it, but below the explosion you were pretty safe. They did not test large military explosives, just sticks of dynamite, but the density of water would protect you from a blast better than air.

[@cherylsmith4826]

I love your humor & illustrations- especially surting blood in your bullets falling from the sky video

[@Deathmvp1]

One thing that should also be added to this is the Optical effect that water will have. As light is bent you will need more light to see the target the deeper they are and will need to change your sights to account for the refaction.

[@sefartf]

Yeaaa "we've all been there"

[@matheaufgabendienureinstei5007]

I truely love this channel!

[@thierrypauwels]

I think that when you are completely under water, it may be quite difficult to see exactly where you are. You are in fact hiding, and that may be the best protection.

[@zawa322]

Not only does water stop a bullet within two feet of impact, you can thrust your arms quickly, making an under water wave, and generate enough power to send the bullet back to where it was originally fired from.

[@TE5LA-GAMING]

Haha, right!

[@RJSRdg]

One factor not mentioned is that when aiming at a submerged target from out of the water, refraction means that you see the target in a different location to where it actually is - so if you aim at where you see the target, you will miss it!

[@hizzousekakashi8836]

I used to work at a card/LAN shop and I will always remember, this one guy and his friend came in and played CounterStrike1.6 on DE_Pool he jumped in the water and his friend shot him in the head, he immediately started yelling "WHAT THE FUCK!? You can't shoot someone in water! THAT'S LIKE PHYSICALLY AND MENTALLY AND SPIRITUALLY IMPOSSIBLE!", I was laughing so hard.

[@Lisa-MarieComplete]

Mission Impossible theme... elite

[@DebunkedOfficial]

We were really pleased to use that 😁

[@celtisafricana4984]

What one needs to remember is that most handgun and shoulder fired calibres are designed for one thing- disruption of flesh (be it hunting animals or defending yourself against bad guys)... and flesh is mostly water. Therefore, a bullet is intended to dump its energy as fast as possible when it hits something wet and squishy

[@endi214]

"Then there is a small problem going out to breathe"

[@TheGameSlayerOf2009]

1:46 the background music is from ubisofts game Raman legends

[@edgarsnake2857]

I've always wondered about this. The general effect on the bullet entering the water is much more than I would have thought.

[@DebunkedOfficial]

Glad you found it informative 👍 Remember to subscribe for our next release!

[@ALEX9080]

Ya same

[@mikebauer6917]

Also, a reason that bullets stop in your mostly water body and unfortunately dumping all that energy into it.

[@synthwave7]

This was so informative. Excellent video.

[@DebunkedOfficial]

Thank you very much! Here's our video on Falling Bullets too kzbin.info/www/bejne/l3SooIJ-rd6lq6s

[@Alphoric]

Nice touch with the bullet temperature colour change

[@michaelarrowood4315]

Great technical explanation of a pretty obscure phenomenon - one that probably appears in Hollywood movies many, many times more often than it ever does in life, even of the most criminal sort. Thanks!

[@usonumabeach300]

9mm rounds (9x19 parabellum) have a much less tapered tip, providing them with a fraction of the same buffer the supercavitating rounds rely on (also akin to the design of the x15's nose to help with the increased air resistance at hypersonic speed). The .223 Remington (5.56mm NATO), .308 Winchester (7.62x51mm NATO), and .50 BMG rounds are all Spitzer shaped projectiles, which utilize the sharper taper. Most "modern" pistol rounds are similar to the 9mm in shape, but older pistol and rifle cartridges had even more blunted projectile tips. I'm curious at what point one would see diminishing returns from this. Also curious if a .45 APC round would go farther and retain greater wounding ability longer since it is even slower than 9mm, typically moving at around 850-900fps with a 230gr bullet in non +p variants. Does the spin imparted by the rifling cause the bullets to decelerate more rapidly? Barrel twist rates are not uniform, even when using the same cartridge often times. A .223/5.56 rifle optimized for standard 55gr FMJ typically use a lower twist rate than one optimized for precision BTHP 75gr rounds. Another example is the 7.62x51: typical you'll see 1:12 twist in rifles that are mostly shooting the 145-150 gr FMJ, where the sniper rifles shooting 175gr BTHP will be 1:10. The competition match grade 168gr will use a 1:11 twist. Heavier bullets need more spin for more stability.

[@amirclev8213]

I love the metric conversions so much, i really appreciate that, very good video, thank you.

[@wolf310ii]

Im not, ft/s is converted to m/s, not km/h

[@amirclev8213]

@@wolf310ii yes true, u r right, m/s is better but at least we've got a metric conversion, I can figure out the reste. I know 90km/h = 25m/s, so the 1400km/h ≈ 390 m/s and the, 2700km/h = 750m/s ... But it takes a bit of mental math, witch is not ideal. And I'm totally ignorant when it comes to imperial units, I have no idea what they mean.

[@wolf310ii]

@@amirclev8213 imperial units means stuborn ignorance. 1 ft is 0,3048m, so for quick conversion its just X ft * 0,3

[@applejacks971]

Animators actually took the time and animated the correct gun with the narrators caliber notation. Most channels would half a$$ it and show an MP5 as a 50 cal instead of an actual Barret. Well done! That level of accuracy and attention to detail adds to the credibility of the rest of the information presented :)

[@vladimirpain3942]

Interesting. Thats why arrows can be used for fishing. Low velocity and relatively high mass. Thanks.

[@Evan_Horvath]

2500 FPS is slow for a .223 Remington. Optimal velocity is around 2900 FPS. Also, 1300 FPS is insane for a 9mm. 9mm Luger are generally 900-1100 FPS. 9mm can reach 1300 FPS, but only certain types of ammunition.

[@antoniotula262]

Lighter +P+ bullets (124gr or less) out of a 4 inch or more barrel.

[@OweEyeSea]

The deformation of the bullet as it hits the water would probably also have an effect on the direction it is traveling as the bullet is now asymmetrical. Murkiness and surface reflection can also make it harder to see the target, and moving water makes them a moving target that is quickly escaping as well.

[@DaveBarrack]

I'm not aware anyone's tested this with armor piercing rounds. There's a lot of different types of ammo out there, and I'm assuming these tests were performed with "standard" rounds, like a full copper jacket lead bullet. I'm wondering how various types of AP ammo fare. I suspect most of them would still break up on impact, but AP rounds are basically standard bullets with a steel penetrator core, and that would probably gain you a few meters of underwater lethality, though the path of the penetrator would probably be diverted considerably.

[@someguy3711]

Mythbusters tested this to a degree years ago, shotguns and some pistol rounds could go through the water(swimming pool) with some momentum left. 5.56 and higher caliber rounds disintegrated almost immediately upon hitting the water. Episode # is 34 titled bulletproof water.

[@AtomicExtremophile]

It's all very well having a gun that can fire 100 metres through the water, but how often is visibility that far? LOL

[@NickRoman]

Not to mention the difficulty of seeing where the person is underwater and thus having trouble aiming at them, along with not being using to shooting things underwater and accounting for the different drop-off of the bullet. So, it sounds like movies actually make it seem more dangerous than it really is to be shot at while under water. Nevertheless, I wouldn't want to risk it.

[@rasedul_islam_rashed]

This is a clear demonstration of bullet penetration into the water. Thanks for the upload.

[@user-ew4gl7fs9x]

This was done in great detail on a Mythbusters show. It told the same thing.

[@user-ml6jz8uq4w]

water is bulletproof

[@marttivuorinen8475]

There is one more factor why diving protects you. If The villain aims at the point where he sees you he IS actually shooting over you. Light (your image) coming out of water forms an angle.

[@giltuito1545]

negligible

[@shrimpflea]

@@giltuito1545 Not at all.

[@williamschnl]

thank you for providing metrical units. got tired most videos use only imperial units.

[@ashiagefa646]

I've never seen people measuring bullet speed using km/h before, it's almost like somebody is riding bullet as a mean of transportation.

[@MrSatyre1]

You really should have demonstrated how the ammo most bad guys are using would expand after impacting the water, drastically slowing their velocity even further.

[@inshort58]

Love your little stick guys! 😆

[@lenowoo]

i have seen video about this topic, and many bullets just simply tumbled, spinning, and then just fell

[@vladislavshevchenko9970]

In my country we have underwater rifles and underwater pistols which can fire up to 30 and 12 meters underwater respectively they have special needle shape bullets and pretty long standing velocity.

[@BongoBaggins]

Water doesn't weigh roughly 1000kg per cubic metre. It weighs exactly 1000kg per cubic metre. It's literally where we get the weight of a kilo from: it's the weight of a litre of water.

[@Quickened1]

There are a number of factors determining how much water weighs in a given volume...eg, altitude, purity, temp... So roughly is a fair statement...

[@Operngeist1]

@@Quickened1 also salinity. Saltwater is heavier than freshwater

[@Quickened1]

@@Operngeist1 hence, purity...

[@nolesy34]

​@@Operngeist1 what about heavy water

[@starcodeep]

Respect for the guy who was in the water the whole time😮

[@Wuerfelspino]

I like how the most replayed part of the video is the end of the ad

[@edonveil9887]

It's more about compressibility tha density. Liquid has to relocate while gas yieds being compressed.

[@mattio79]

The more energy a projectile carries when it hits water, the more it gets destroyed as #mythbusters proved.

[@MisterBroad]

A squaremeter of water weights EXACTLY 1000KG. You know, the beauty of the metric system....

[@robertfitzjohn4755]

Not exactly. The density of water varies with temperature, and most water contains dissolved subtances that affect its density. Also, you meant a cubic metre, not a square metre.

[@MisterBroad]

@@robertfitzjohn4755 Touché

[@robertfitzjohn4755]

@@MisterBroad To be fair, that is how the kilogram was originally defined.

[@MisterBroad]

@@robertfitzjohn4755 Hehe, indeed. ^^

[@darkwaters2501]

The refraction index of water also makes it very hard to aim accurately at something submerged.

[@gerzluis]

Mythbusters also had an episode about this, and ever since, I roll my eyes whenever I see it done (regular bullets) in movies. 😅

[@robinbfh5893]

one problem has not been covered: your hunters could just wait until you dive up, then you are an easy target :D

[@oldmandoinghighkicksonlyin1368]

Well that's easy, just take out the decoy wooden duck out of your back pocket and stick it on your head while still underwater. They won't shoot a lovely water fowl for no reason.

[@katherinegilks3880]

Depends on what kind of water it is. If you are in a river, you could get quite far away underwater with only one breath. Also, if it is at night, or if there is lots of flotsam in the water to hide under, it would be harder to aim at you. Helps to be a good swimmer though.

[@nolesy34]

​​​@@oldmandoinghighkicksonlyin1368 or a a reed because clever you to jumped into pond, and not a dangerous port

[@ardemua]

It's not easy to hit a moving target.

[@yasinalyani5311]

7:35 the reaction 🤣🤣🤣

[@Mr_Burns22]

I looked up this video after doing some research for D-Day. I am not disappointed.

[@kixigvak]

You are the king of highly useful information

[@David-qp9bq]

Love these videos

[@DebunkedOfficial]

Thank you! This is one of our favorites!

[@RxgePlayz69]

or wait till u get back up to breathe

[@TheSkillBuilderX]

The intro is something else

[@markusdombois464]

Very nice. Every action creates and opposite and relatively equal reaction.

[@tiny_frost8]

♥ Debunked. Been sick so missed past few vids. Love this channel though

[@DebunkedOfficial]

Glad you're well again! And enjoy the new videos! Thanks for watching

[@norml.hugh-mann]

I bet the "underwater rifle" would be all but useless if fired from the air into the water...having to break the surface ..and who uses supercavitating bullets?

[@DJones476]

My favorite underwater weapon is still Barf the Magic Dragon!

[@Pentagon005875]

knew it why that bridge looks familiar

[@lilkasper378]

I wonder if coating bullets in something hydrophobic would make them perform better.

[@christianfensbo6980]

Have you ever tried shooting into water where there’s fish? They come up belly-up. If you where hiding in the water and a high power rifle shot in it you’d probably get your ears blown out and therefore come to the surface either by yourself or floating.

[@allangibson2408]

Body mass has an impact to concussion. Hand grenades will generally do human sized targets in however…

[@ldf4064]

Everything is bulletproof if you have enough of it.

[@samjay1256]

Wow, that makes it more impressive. The mantis shrimp is one powerful creature.

[@miriamramstudio3982]

Great video. Thanks

[@lanz637]

I can't readily agree with the handgun underwater scenario. If the assailants were well trained they would remove magazine before entering into the water and load it underwater. With no trapped air its effective up to at least 10 feet.

[@shrimpflea]

Or they could just wait till you come up for air and then shoot you.

[@diyeana]

Great! Next time I'm running from a hail of bullets, I'll go under water until the bad guys leave. I see no issues here. 😅 Have you done a video on the longest living thing (w/ a bonus of the immortal jellyfish)? Or what really happens to that gum and 8 spiders a year you swallow? 😆 I'll have to go back and check.

[@DebunkedOfficial]

🤔

[@Quickened1]

I know what happens to the gum, and eight spiders... It's called number ✌

[@DebunkedOfficial]

We haven’t done longest living and the gum and spiders could work in a listicle video. Thanks! 👌

[@diyeana]

@@Quickened1 🤣

[@alexanderd.7818]

4:28 “pretty serious hardware” 🤣

[@PolkKitsune]

A side tangent, I suppose, but one scenario that came to mind would be if explosives are involved. The shockwave would travel through water quite easily, and would likely devastate your body. I'm reminded of that Mythbusters episode about shooting fish in a barrel, and how effective Dynamite fishing is.

[@yunusemree.1917]

so let me ask : is bullet waterproof ?

[@heroyt2490]

I subscribed after the first video because the content was good

[@OficialDeChancelaria]

Nice to see KAUST being cited

[@1mezion]

I love the reaction of the animated figures 😀