Underwater firearm

Instead of thumbing you down I shall explain. Ahem...

Modern cartridges are airtight and are already surrounded by enough air inside the casing to properly ignite the propellant inside. When the striker hits the priming charge on the back of the round the propellant combusts causing the bullet to leave its casing. Granted, discharging a firearm underwater is not ideal as the gif no doubt showed you, and can cause issues when reloading.

It's so much better when someone answers a question intellectually rather than ignoring them or calling themselves an idiot, here's a thumb

Grazie!

HOLY THUMBS!!! I'm happy I could help but Jesus Christ!

Does it matter if there is air in the barrel or not when you fire it? I heard one or the other will make some guns explode.

Yet another reason why firing underwater (or with a dirty barrel) is not advisable. Firearms produce a shitton of energy when fired, the less resistance the barrel creates on the bullet the more energy can be safely expelled through the muzzle. Water is more resistant than just air, so the energy stored in the barrel is expelled from the gun slower and thus back into the weapon itself. Granted this is unlikely to happen, but it is possible.

still wet black powder doesn't burn (you're right tough)

They look like manly flowers.

Lots of guns are capable of firing underwater without damage.

That pictured above are hollow point bullets opened up

Bullet flowers!

"the suburbs are a dangerous place" Lol, the suburbs of what? Detroit? maybe.

I hope you're trollin'

Looks like you hit the hornet's nest about the cop killer bullets that don't exist....

Nothing about a hollow point makes them more effective on Armour than a normal round

On youtube... /watch?v=tku8YI68-JA

I learn something every time I watch it. Also, a little squicky in some parts, including a couple clips of a live surgery.

The irony is that those can save your life. Yeah, they hit harder, but they tend to penetrate less. You'll be glad if one of them gets stuck in your sternum instead of nicking your aortic artery.

And I didn't say anything about shooting someone to save their life, but rather your chances of surviving if you were shot yourself. Maybe I worded it poorly, but I was saying that there are some factors involved in the terminal ballistics of hollow-point rounds that detract from their lethality in some circumstances.

There's a difference between "lethality" and "stopping power". A .22LR is plenty lethal. It'll kill you eventually, but it's not going to stop someone from beating your face in.

Shoot faster then

Yeah, that's what you're supposed to do, no matter how much of a "cop killer" your round of choice supposedly is.

But but, all the arm chair commandos must be right!?! Why else would they have a .45 1911 instead of a "tiny" 9mm with 16 round mags...

<3 XD9 with 16rd mags

By their logic, just go for 7 rounds of .50AE and hope the problem shits itself away.

SHUT THE FUCK UP CARLOS! SWEAR TO GOD YOU FUCKING BUS RIDING PIECE OF SHIT I WILL CHOKE THE BOY OUT OF YOU!

FUCK YOU CARLOS! I'M SICK OF YOUR SHIT! YOU'RE ADOPTED!

she wants the glock

Glock.

Glock

Keep that "lmfao" cancer on facebook

THAT'S MY GUN!

OP just can't get enough..

kinda looks like a horses penis

I've seen enough horse penis to know that it does not, in fact, look like a horse penis

I wonder how the .50 caliber round would have fared if they actually fired it underwater. As I recall, they fired the rounds from above the water into the water. This led to the bullets striking the surface of the water, which at that speed, is comparable to hitting concrete, which would cause bullets to disintegrate upon hitting the surface.

It's more of a matter of velocity rather than caliber. A heavier round would fare better under water, as the resistance from the water is proportionate to the velocity the projectile. Reduced drag + increased momentum = further travel time. Granted, that doesn't mean much if the round is travelling over 2700 feet per second, as with that .50 BMG.

Ah, well i guess i didn't connect that it wasn't exactly the caliber, but the velocity. It just so happened that in their tests each new weapon had a larger caliber, the velocity must have increased too and i either didn't hear them say it or they didn't mention that bit

Haha I remember that Adam and Jamie were tripping serious balls when they aimed a 50 cal at a public swimming pool..

I miss that show. Does it still air?

Whoa, sheesh i'm sorry, i didn't scroll down and i thought it was interesting. I meant no harm and more wanted to show the gif. I have nothing wrong with the content :/

Yea I agree with him down there...

You know what that means, if someone ever points a gun at you underwater, make sure you're at lest 4 feet with distance of the gun. ;)

the mythbusters already proved that

fuck yea ffdp

That's a truly fascinating story.

doesnt it only work on things larger than 9mm? If i'm thinkin right, 9mm has a small enough surface area to not be ripped apart upon contact

Most handguns can shoot underwater, as long as the hammer isn't exposed (like a revolver). The gun can still function, and it has nothing to do with the bullets, but the water friction can slow the hammer down to the point that it won't set the bullet off.

When shot INTO the water, the gun will either be so strong that the bullet shatters on impact, or it's velocity will die out after about 2 feet deep. Either the case, guns aren't that dangerous when shot into water.

Try shooting a gun with the barrel and only the barrel submerged...

Pretty much everything they shot into the pool broke apart after a few feet. It isn't surface area, its that its moving so fast, the drag breaks it apart.

well alrighty then

water will break up anything over a certain feet per second. i forget the number, but there isnt a gun that fires under it

don't know hwy you got thumbed down, you're right

Water stops bullets, period. And quickly at that. Caliber is irrelevant.

AKA

Good ol bolt guns. Firing .75 caliber rockets that explode miliseconds after penetration for maximum carnage.

.998, you fool! .998!

The 998-caliber Goldwyn-pattern Astartes Bolter rifle. For when 50-cal heavy stubbers just won't do the job.

Curses! I thought it was .998, but I wasn't sure, so I went on the wiki and it told me .75!

Wait, that was just for a standard Bolter, not an Astartes Bolter

Oh well. Them Space Marines always do have to make things bigger for themselves. I prefer a good old 16-inch Battle Cannon myself.
And these tanks have Combi-Bolters on the sides! ELEVEN BARRELS OF HELL, at your service!

Hellstorm cannon. Nuff said

I'll be right back, just getting a Titan killing Battle Cannon.

Make compensation jokes at your own expense.

wait what. Shooting that gun would destroy the tank and probably kill everyone around it from the concussive force. unless it's a laser, then it's pretty cool. Erm...

I've run out of weapons, except for Planet Busters

Don't worry your armoured little head. You Space Marines get THIRTEEN Barrels of hell!

Is... that a landraider? I have'nt played 40k in like 10 years

IIIIIT'S THE BANEBLAAAADE!!!!

The Fellblade variety. Available to Space Marines near-exclusively.

Ooooh purdy

Yes, it's pretty...

But was it gifted to your chapter by the Living Saint Nicklaus?!

hahaha, that's great. No but the Angry Marines Dreadnaught Kickassius Maximus paid my chapter a visit

Sheit, you are a Space Marine, then? Emperor be praised.
Where you stationed at? I'm Cadian born, raised and stationed.

As a Black Templar, I am stationed on the Battle Barge Eternal Crusader. We have received word of a filthy xenos matriarch who is threatening some nearby worlds, and will be deployed shortly to deal with the foul beast

Emperor's Blood, look at the size of that thing! You'd better be packing lascannons, or you better have armour if you don't have them.
But then again, you could always call for your Friendly Neighborhood Artillery Commander for heavy ordinance!

TORGUE?!?!?

Every Firearm with an enclosed cartridge can fire in space...

Gunpowder and like explosives still require oxygen to ignite, of which there is none in space.

I believe this gun was designed quite a few decades ago, though.

That is incorrect. Oxygen is contained in the powder itself and inside the casing. That means that no external oxygen is needed.

HISTORY CHANNEL FUCKING LIED TO ME THEN

Hopefully not in gaseous form, because the casings would rupture due to the vacuum of space.

Most of it is in the powder. However, the pressure of space would not be enough to rupture a brass casing.

Space is a vacuum, ie no pressure. If the casing has air in it, then it has pressure inside of it, and will expand to escape.

Will it burst or not, not sure, depends on the amount, casing thickness, etc.

But I think it would be more likely the air would be forced out in space before it could even be used.

It needs to be tested either way.

why the fuck didn't you just post the gyrojet and say what it did? This is stupid

Because I first heard about this like 6 or 7 years ago and am just going off my memory. I had no clue it was called a gyrojet until everyone responded.

Ah.

Gyrojet. They're called Gyrojets.

I'd like to see that project revisited. Maybe in the form of saboted Gyrojet shotgun slugs, which may avoid the manufacturing flaws noted in later Gyrojet ammunition, and doesn't require any specialized firearms.

Imagine how awesome that is. Minirockets from a shotgun.

i say we put it to the test

The gun barrel would already be under a vacuum before you loaded the first road, so there would be nothing to suck the bullet out with.

the explosion of gun powder in the cartridge produce gass like CO2 or something like that that actually makes the pressure between the bullet and the shell that means the bullet would be much faster becouse thare wouldnt be any air...

I did not think of that aspect, thank you for enlightening me.

Ignition of the gunpowder in the cartridge makes gas, right?

It doesn't matter anyway. Look how far the bullet goes.

It would fly more or less infinitely in space...

Well yeah. I was just talking about the water. Now that you mention it though, back in the 60's there was a project designed to make a gun fireable in space, just in case we had to shoot space commies. The gun was designed to be fired by rocket fuel, so recoil would have been negligable. The downside was that the bullet had to accelerate, so you could literally stop the bullet by jamming your finger down the barrel. It was only lethal at abut 60 feet, but the bullet was designed to be super sonic.

Any more info on that?
I just got interested :D

Well, there weren't many made. Seeing as we never had to shoot space commies, the gun would have had to be letha on earth, which thank god, has atmoshpere. This sucked for the company making the bullets though. As an object apporaches the sound barrier, air turbulence increases, which made the bullet usless at short range, and too inaccurate at long range. Also, rocket fuel isn't exactly cheap. Each round cost about a dollar (or 5 bucks IDK which), but that was way more expensive than other types of ammo at the time.
Two types of weapon were made: a pistol variant and a rifle variant. If you can find one, supposedly they're valued at around 1000 and 1500 bucks respectively.
The ammo, however, is 100 bucks a round now.

a normal firearm would still work if you make sure everything is vacuu.

only downside if the bullet will only go half the speed it would be going since you will be going backwards cause of the force, simple physics.

Probably false. The bullet relies on a combustion reaction, not a physical push.

a rocket relies on a combustion reaction, your point being?

That's a continuous burn. On Earth, a bullet still pushes you back, you just resist it. In space, the same amount of energy would be used to push you back, you just wouldn't be able to resist it. Bullet would have same initial velocity.

actually you don't resist it on Earth, you just don't move because of the 'small' size of the force and mostly in heavier guns the ability to put them down somewhere, we 'resist' it on Earth because of the gravity nothing more nothing less.


+ you proved my point that it is actually possible to fire fire-arms in space.

and a possibility to give a bullet more acceleration in the first few centimeters/inches would be a pressurized gun. If they can make a container that's able to withstand great force.

Do you not know what kind of pressures it would take to do such a thing?

They only said that part. If the gun was powerful enough, it would have destroyed the bullet on impact.

The guns they used weren't that strong, and they found that after about 2 feet of water, the bullets lose all of their velocity.