I imagine the vacuum will be rough on both lubricants and cooling for any firearms designed for use in an atmosphere. Particularly air cooled weapons which will have the cooling system replaced with a thermos.
V
How about missiles? Obviously, there will be be problems with manoeuvring, but concerning propulsion?
As for how you'd launch that missile — something like a VLS/Torpedo Tube would do the job, I guess.
edited 17th Jul '15 2:45:01 PM by Greenmantle
Keep Rolling On
You don't even need a modern gun - even black powder is self-oxidizing.
As for missiles, any rocket-powered missile with thrust vectoring or gimbal capabilities should be able to work more or less fine in space.
The law in the night
![[up]](https://static.tvtropes.org/pmwiki/pub/smiles/arrow_up.png "[up]"){kind=icon}
Liquid lubricants will sublimate almost instantly in the vacuum, while a gun may be good to fire a couple of shots without jamming or suffering issues, downing a full magazine will be very hard without the friction and heat trying to fuse some parts together.
Heat dispersion is a major issue, even if a gun that has its internals made to fire IN SPACE! will have to deal with the large amount of heat generated by the gun, either a large enough heat sink or coolant will be needed to deal with it.
As for the change in ▲V, bullets from conventional calibers don't have enough momentum to push a human body through zero G at noticeable velocities, so you'd either need to fire a lot of bullets (assuming you can do it) or fire a large enough projectile (which will probably harm you) to move you.
Gyrojets and other rocket based projectile weaponry would be better suited for zero G and vacuum shooting, since they wouldn't require complicated mechanical action to cycle the weapon nor they would generate the amounts of heat burning gun powder does.
Inter arma enim silent leges
Frankly, going for the gun option when, you know... space is right there kind of suggests a lack of creative thought when it comes to "accident" construction.
If you positively need somebody dead, pressurised cans near a lot of incendiary materials and electronics with a whole lot of freezing, boiling nothing can hold a plethora of options.
The law in the night
Well, why not use a gun? I want a motherfucker dead and that motherfucker is far from me and things can get far in space, quickly.
I was originally gonna post this in the US Politics thread, but this article is probably too dumb and stereotypical redneck for that. So I guess I'll leave it here instead.
Police probing death in LA find 1,200 guns, 2 tons ammo 
No confirmation yet on whether the guns he owned were all legally purchased or if he obtained them through illegal means, but his death has been confirmed to be as of natural causes so far.
edited 21st Jul '15 11:31:25 PM by SgtRicko
Causing freakouts over sourcing since 2018
According to the article the deceased apparently never fired some of the weapons he had.
Could he have been a collector of some sorts?
I have disagreed with her a lot, but comparing her to republicans and propagandists of dictatorships is really low. - An idiot
A part of me thinks he might be more of the 2nd Amendment gun nut sort. You know, the ones who think the government is out to take their guns and thus begins to hoard them for the day the revolution begins collection purposes.
Night Clerk of the Apacalypse.
From the article he sounds like a hoarder almost. Only he hoarded shit tons of fire arms and related material. He had everything from common hunting and shooting books to a wide assortment of accessories. Some of them still with price tags attached.
Who watches the watchmen?
The law in the night
But the big question is: So now that he is dead can I buy his stuff?
Inter arma enim silent leges
An update on the gun hoarder: apparently he claimed to be an undercover agent for some top secret organization, and he had a fiance who believed him.
Several neighbors said the man was known only as "Bob" in the local area and described him as a gun fanatic who claimed to have worked covertly for either the FBI or the CIA. His fiancée had lived in the town home on Palisades Drive for years, they said.
"He'll say crazy things to people like he does night missions swimming to Catalina," said one neighbor, who declined to give her name, saying she was afraid. "He would come ... and tell us he would show us self-defense moves."
An attorney representing the man's fiancée said that he was the one who contacted police last week about the man's death and the weapons at the home.
Harland Braun, a veteran criminal defense attorney who has represented celebrities and other high-profile clients, said the story the fiancée told him about what occurred "sounds so bizarre." The dead man, he said, had told his fiancée that he was an undercover operative for the government and was being watched by the unnamed agency he worked for.
"The problem is that the truth may be unbelievable," Braun said. "She'll talk to the LAPD, but will anybody believe it?"
The man's mysterious past is the reason why his fiancée, Catherine Nebron, didn't immediately report his death to authorities, her attorney said. Braun said the dead man, whose name he said he couldn't remember, had been suffering from cancer.
On the Fourth of July, the man, Nebron and two friends were in the parking lot of Bristol Farms on Wilshire Boulevard in Santa Monica when the man began feeling hot and sick, Braun said. They tried to cool him down with ice, but it didn't work and he died, Braun said.
The fiancée wasn't sure what to do with the body, but figured the same unnamed agency watching him would know that he died and would come for him, Braun said. Nebron parked the vehicle on Palisades Drive and left it because she "assumed they were tracking him," the lawyer said.
The woman went on a trip to Oregon, Braun said, and returned to find the vehicle still parked in the same spot. Nebron, he said, is "sort of in a state of shock" over the death of a man she knew for 17 years. She had lived in one room of the house while the weapons were locked in another, the attorney said.
"One of the mysteries of this guy is who he really is," Braun said.
And to answer your question: probably, if the police decide to auction his stuff. Looks like most of it is actually legally owned, no "hot" items so far.
edited 22nd Jul '15 8:11:49 PM by SgtRicko
Night Clerk of the Apacalypse.
Guy sounds nuts. Glad it seems like he was the mostly harmless kind given his personal arsenal.
Who watches the watchmen?
"In distress", my ass.
Given it's Los Angeles, I'd bet on the guns being destroyed instead of auctioned off given their hostility towards armed civilians.
On the other hand, I think this is the first time I've seen articles on this kind of story actually use "arsenal" correctly. Most other incidents it's like maybe half a dozen weapons and ammo enough for just one day at the range. That's not an arsenal if you're not a hoplophobe. 
edited 22nd Jul '15 10:27:15 PM by Nohbody
All your safe space are belong to Trump
They cannot destroy guns unless they are illegal. And big cities like LA, NYC, and Detroit can send the guns away for auction. There is no obligation for it to stay in city, just in state.
Normally the state police facilitate that.
"Psssh. Even if you could catch a miracle on a picture any person would probably delete it to make space for more porn." - Aszur
Blowout soon fellow Stalker
Now should I go to the lesser coast to buy some guns and probably carry them across state lines illegally. That is the burning question here.
Oh really when?
Only locals and licensed are allowed at these auctions. Everything is registered.
You would be permitted to attend, but they wouldn't allow you to bid.
"Psssh. Even if you could catch a miracle on a picture any person would probably delete it to make space for more porn." - Aszur
Blowout soon fellow Stalker
Details
Oh really when?
Baby, you in the south. You can find all sorts of goodies where you are that are off the books.
And chances are, the laws are lax enough you can do it legal.
"Psssh. Even if you could catch a miracle on a picture any person would probably delete it to make space for more porn." - Aszur
Blowout soon fellow Stalker
But those are all just Glocks and Rugers with the numbers filed off. And the only Kalashnikov USA dealership I know of here is in Greensboro and I hate Greensboro.
There's nothing to do there and it's all the wrong color.
Oh really when?
I can find it for you. Gimmie a gun. This will be fun.
"Psssh. Even if you could catch a miracle on a picture any person would probably delete it to make space for more porn." - Aszur
Blowout soon fellow Stalker
Finding guns is easy, hell building guns is easy. I know a nice lady who'll happily do those weird 5.7mm AR-15 conversions. I just hate Greensboro is all.
Well actually finding anything Eastern Bloc is hard, it's all Romanian and Chinese knockoffs where I live.
But if you want a challenge, find a reliable place to buy .22LR ammo. Everywhere here keeps selling out. My local pawn shop has taken to flying this big ass banner outside whenever they finally get some in stock.
edited 23rd Jul '15 6:34:54 AM by LeGarcon
Oh really when?
Does it have to be a Kalashnikov? Because a Mosin-Nagant might be easier to find in more places at a lower cost if you just want something Russian.
Though, in general, why the focus on Eastern Bloc? Is it just a matter of a certain je ne sais quoi? Not that that isn't a valid reason, but for the most part, it seems like that and cost are pretty much the only major reasons to come down on one side or the other of AR vs Ak.
edited 27th Jul '15 10:01:12 AM by Balmung
Professional Writer & Amateur Scholar
Looks rather shitty.
YAMATO QUALITY.
AND, apparently that's 5 times the price of MP 5.
I'm a (socialist) professional writer serializing a WWII alternate history webnovel.
But the movies say different?!
◊![[lol]](https://static.tvtropes.org/pmwiki/pub/images/lol2v12_4863.png "[lol]")
"Psssh. Even if you could catch a miracle on a picture any person would probably delete it to make space for more porn." - Aszur