Firearms In Space - General

[QUOTE=3v3ryb0dy;27241482] Only the word "magnum" was noted, that could mean 7mm remmington magnum, .357 magnum, .44 magnum etc[/QUOTE] yes when a layman talks about a huge magnum he means a .22 magnum

[QUOTE=Mega1mpact;27241472]Agreed acording to wikipedia a .357 magnum is pretty strong. So the recoil will blast you into deep space. [url]Www.wikipedia.org/wiki/.357_Magnum[/url][/QUOTE] You gain approximately as much momentum as the bullet has (for example the ejecting gas also has some momentum). With that mass and that muzzle velocity, it only has 3.969 kgm/s of momentum. To gain yourself a speed of 1m/s, assuming your mass is 100kg, you'd need to fire 25 bullets.

Great post and hopefully will clear some people's misconceptions (but I doubt it). But still, I think overheating would be a problem. You never seem to address overheating. Radiation seems to work well, but it does not actually cool out the barrel fast enough to allow continous firing. Near absolute zero of space doesn't mean anything when there is nothing to take away the heat from the gun. Humans are supposedly able to survive in vacuum of space for upto 90 seconds, which includes exposure to the cold (assuming you will be shielded from radiation/sun), the body doesn't instantly freeze and loses heat quite slowly, think how a gun barrel would act after recently firing. Other than that you are quite right about plastic guns fracturing and rays of the sun destroying/warping guns.

But would recoil based reloading work in space?

[QUOTE=ChristopherB;27239271]A bullet doesn't have enough mass and velocity to accelerate a large body (such as a person) backwards significantly.[/QUOTE] In about two or three shots in the same direction and you'd be travelling backwards

Just use crossbows Little to no recoil

[quote]It will also go faster and not stop unless it hits something cause there's no air to give it any friction.[/quote] and this is why sir isaac newton is the deadliest son of a bitch in space

[QUOTE=RubberFruit;27238566]There would be gravity unless in totally 'Middle of fucking nowhere' space.[/QUOTE] No, there's always gravity where ever you are. Unless it's not this universe. Gravity works at an infinite distance. The thing is just that the bullet is unlikely to be affected by gravity for a long time, depending on where it's going of course.

You just gotta love KNO3 its useful for so many things

[QUOTE=Xolo;27239587]Yeah it does[/QUOTE] no it doesn't

1. Modern propellents in rounds do not require outside oxygen 2. If someone to create a firearm for use in space they would probably find another method of cooling, say a liquid system of some sort 3. There are plenty of materials that are self lubricating out there. The real issue would be finding a way to counter act the recoil of the weapons, since firing the weapon would push the user back with the same amount of force it used to propel the bullet. Of course this is assuming we're using typical fire arms and not a gyro pistol, rail gun, or other type of weapon.

[QUOTE=UncleJimmema;27243636]1. Modern propellents in rounds do not require outside oxygen 2. If someone to create a firearm for use in space they would probably find another method of cooling, say a liquid system of some sort 3. There are plenty of materials that are self lubricating out there. The real issue would be finding a way to counter act the recoil of the weapons, since firing the weapon would push the user back with the same amount of force it used to propel the bullet. Of course this is assuming we're using typical fire arms and not a gyro pistol, rail gun, or other type of weapon.[/QUOTE] Possibly the first guy who knows what he's doing here?

Space pirates.

Basing off of what Jimmema said, how could the recoil not quickly push you back? If we take Newton's laws into account, the huge force that would be used to propel the round out with push you back just as equally. I might just be talking out of my ass here, but that's what I think.

[QUOTE=RubberFruit;27243679]Possibly the first guy who knows what he's doing here?[/QUOTE] Uh, how about ThePuska? Firing a gun in space wouldn't push you back far at all.

[QUOTE=Swebonny;27244019]Uh, how about ThePuska? Firing a gun in space wouldn't push you back far at all.[/QUOTE] Point taken. But I don't think people would be firing them normally, I was thinking if a space war was actually happening, surely a satellite-mounted gun would be more practical? Oh well. This thread is about 'firearms' so we should stick to that

[QUOTE=Miktor.;27243296]No, there's always gravity where ever you are. Unless it's not this universe. Gravity works at an infinite distance. The thing is just that the bullet is unlikely to be affected by gravity for a long time, depending on where it's going of course.[/QUOTE] What happens if you happen to be in an area of space where all the gravitational forces on you cancel one another out? There'd be no net gravitational force then. What would that even be like?....

[QUOTE=RubberFruit;27244072]Point taken. But I don't think people would be firing them normally, I was thinking if a space war was actually happening, surely a satellite-mounted gun would be more practical? Oh well. This thread is about 'firearms' so we should stick to that[/QUOTE] To prove it I'm just going to show the things ThePuska talked about. The momentum created by a bullet with the weight 5 grams and the velocity 1000 m/s is only 5 kgm/s. p = mv -> 0.005 * 1000 = 5 kgm/s. Now what speed can that bullet give a person in space wearing an EMU suit? Suit weight = 115 kg, add the person, let's say 80 kg = 195 kg. Now how much speed will 5 kgm/s give an 195 kg heavy astronaut? 5 kgm/s = 195 * V V = 5/195 = 0.0256 m/s So, not really sending you deep deep into space, but giving you a slight push. 2.5 cm / s is still noticeable.

Whoa, space suits weigh that much? I thought I could just slap twenty kilograms on a healthy man and it'd be "approximately" correct

[QUOTE=ThePuska;27244383]Whoa, space suits weigh that much? I thought I could just slap twenty kilograms on a healthy man and it'd be "approximately" correct[/QUOTE] According to wiki the total "Shuttle EVA suit weight" is 115 kg. I assume the weight of that little "rocket chair" is included. Edit: Hm after looking at Russian and Chinese EVA suits it seems that most of them are within the 100-120 kg area.

[QUOTE=Swebonny;27244496]According to wiki the total "Shuttle EVA suit weight" is 115 kg. I assume the weight of that little "rocket chair" is included.[/QUOTE]You mean the EMU? The suit itself is 55.3 kg

[QUOTE=Sgt Doom;27244593]You mean the EMU? The suit itself is 55.3 kg[/QUOTE] That page confused me. So many numbers. Let's say that it was a Russian or Chinese astronaut instead, most of their suits are within the 100-120 kg range. "Total ISS EVA Suit Weight 319 lb (145 kg)", what's this then? What's included in this?

[QUOTE=Killerelf12;27244193]What happens if you happen to be in an area of space where all the gravitational forces on you cancel one another out? There'd be no net gravitational force then. What would that even be like?....[/QUOTE] Like when someone is pulling your arms and legs at the same time. Or well, something like that. I can't explain it, but it's been thought of before what happens when two black holes meet each other. I don't know what the conclusion is though.

automerge.

[QUOTE=Swebonny;27244692]That page confused me. So many numbers. Let's say that it was a Russian or Chinese astronaut instead, most of their suits are within the 100-120 kg range. "Total ISS EVA Suit Weight 319 lb (145 kg)", what's this then? What's included in this?[/QUOTE]I've no idea, actually; those numbers are confusing me as well. Turns out it doesn't include a rocket chair, though; that's the MMU (manned maneuvering unit), which was used only 3 times.

[QUOTE=DrLuke;27238784]What about pumpaction Supersoakers?[/QUOTE] Their sole purpose was to be used in space

Whoever said that they were surprised the nasa hadn't done experiments on it, it's because nasa has much cooler experiments to conduct. At least I find this a lot more interesting than tools of murder. [media]http://www.youtube.com/watch?v=BxyfiBGCwhQ[/media]

[QUOTE=Miktor.;27244713]I can't explain it, but it's been thought of before what happens when two black holes meet each other. I don't know what the conclusion is though.[/QUOTE] [QUOTE=Swebonny;27244719]automerge.[/QUOTE]

Wouldn't a bullet shot in space go on forever until it hits something? What if you miss and piss off some aliens!

[QUOTE=DesolateGrun;27247228]Wouldn't a bullet shot in space go on forever until it hits something? What if you miss and piss off some aliens![/QUOTE] assuming the bullet doesn't land in a gravity field then yes theoretically the bullet would travel forever. But since we're all caught in the gravity of the sun the bullet would eventually go into a spiral towards the sun where it would eventually impact with the sun.