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Posted: 6/29/2018 1:17:24 AM EDT
[#1]
Will gunpowder even combust in a vacuum?
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Posted: 6/29/2018 1:17:32 AM EDT
[#2]
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Posted: 6/29/2018 1:17:38 AM EDT
[#3]
Lever action rifle or revolver.
Because most guns won't cycle properly in space. |
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Posted: 6/29/2018 1:18:21 AM EDT
[#4]
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Posted: 6/29/2018 1:19:18 AM EDT
[#5]
Quoted:
Need recommendations on the best of the best for combat in space. Actually shtf, no wait hd, eff it all of it. No budget here people. Any optics you think I should go with? What should I zero at? And go... Joking aside, lots of potential up there. |
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Posted: 6/29/2018 1:20:54 AM EDT
[#6]
Quote HistoryQuoted:
Will gunpowder even combust in a vacuum? What I wanna know is what camo is best for space 
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Posted: 6/29/2018 1:21:09 AM EDT
[#7]
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Posted: 6/29/2018 1:22:08 AM EDT
[#8]
Quote HistoryQuoted: Since zero gravity means weight doesn't matter why not a howitzer with the hubble telescope mounted on top of it? |
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Posted: 6/29/2018 1:23:32 AM EDT
[#9]
Quote HistoryQuoted:
Probably because momentum is mass x velocity. Not weight x velocity. Quote HistoryQuoted:
Quoted: Since zero gravity means weight doesn't matter why not a howitzer with the hubble telescope mounted on top of it? 
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Posted: 6/29/2018 1:24:53 AM EDT
[#10]
A Callahan full-bore auto-lock. With a case.
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Posted: 6/29/2018 1:26:03 AM EDT
[#11]
Quote HistoryQuoted: I vote yes, since a round is already sealed and self contained. What I wanna know is what camo is best for space |
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Posted: 6/29/2018 1:26:31 AM EDT
[#12]
Quote HistoryQuoted:
Will gunpowder even combust in a vacuum? Here we go.
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Posted: 6/29/2018 1:27:07 AM EDT
[#13]
Quote HistoryQuoted:
Lever action rifle or revolver. Because most guns won't cycle properly in space. |
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Posted: 6/29/2018 1:28:27 AM EDT
[#14]
A Callahan full-bore auto-lock, customized trigger, double cartridge and thorough gauge.
Or something looking like this 
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Posted: 6/29/2018 1:28:43 AM EDT
[#15]
Quote History |
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Posted: 6/29/2018 1:30:01 AM EDT
[#16]
Quote HistoryQuoted:
Lever action rifle or revolver. Because most guns won't cycle properly in space. |
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Posted: 6/29/2018 1:32:12 AM EDT
[#17]
Quote HistoryQuoted:
Recoil operated ones, maybe. But I don't see why a gas operated gun would have a problem in zero G. Quote HistoryQuoted:
Quoted:
Lever action rifle or revolver. Because most guns won't cycle properly in space. |
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Posted: 6/29/2018 1:32:30 AM EDT
[#18]
Should just hit the box an hope for a ray gun huh.
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Posted: 6/29/2018 1:32:54 AM EDT
[#19]
Lots are missing the mark. You don't really need a rifle for use actually out in the vacuum of space. That doesn't make sense. What you do want are personal defense weapons for use on board ships and inside of planetary habitats that have controlled atmospheres.
Sort of like naval combat. Sailors aren't out swimming around shooting at each other with rifles. Sailors are on big ass ships that have their own ship borne guns. |
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Posted: 6/29/2018 1:35:09 AM EDT
[#20]
Brought this up today to some engineers at work shit got weird quick.
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Posted: 6/29/2018 1:37:54 AM EDT
[#21]
gyrojet will return
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Posted: 6/29/2018 1:40:51 AM EDT
[#22]
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Posted: 6/29/2018 1:45:42 AM EDT
[#23]
Quote HistoryQuoted:
Will gunpowder even combust in a vacuum? |
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Posted: 6/29/2018 1:45:54 AM EDT
[#24]
Quoted:
Need recommendations on the best of the best for combat in space. Actually shtf, no wait hd, eff it all of it. No budget here people. Any optics you think I should go with? What should I zero at? And go... Joking aside, lots of potential up there. The trajectory would be so flat up there that training to shoot knowing that impact will be a near fixed point below the sight/optic, would likely be easier than setting an intersect point at some distance and the requirement of varying hold-under's. Without bullet drop, parallel just seems simpler than playing with angles |
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Posted: 6/29/2018 1:48:14 AM EDT
[#25]
Quote HistoryNo trigger guard or pivoting guard. Gloves are kinda important. Brass catcher. Ambidextrous lower. Oversized charging handle. And a suppressor for use inside a pressurized hull. Of course for something like this a submachine gun might be preferred for lightness and portability.  Attached File |
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Posted: 6/29/2018 1:51:13 AM EDT
[#26]
Carl Gustav.
Because Recoilless rifles and rocket launchers exhaust gas to the rear, balancing the recoil. |
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Posted: 6/29/2018 1:54:25 AM EDT
[#27]
Nasa actually researched this in the 1960's and developed the gyro-jet weapon system in case they ran into hostile little green men armed with "assault style" laser sighted butt-probes on the moon.
Basically the powder charge is used to propel a projectile like a rocket imparting spin for gyroscopic stability. Normal firearms require lubricants that would turn into wax or freeze in extreme temps in a vacuum. Metals behave erratically in these conditions as well. then there is vacuum welding, expansion and contraction of metal under the sunlight and shade temperature differentials that breaks shit. Go with a rocket. |
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Posted: 6/29/2018 1:58:22 AM EDT
[#28]
Quote HistoryQuoted:
A Callahan full-bore auto-lock, customized trigger, double cartridge and thorough gauge. |
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Posted: 6/29/2018 2:06:00 AM EDT
[#29]
Quote HistoryQuoted: I vote yes, since a round is already sealed and self contained. What I wanna know is what camo is best for space 
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Posted: 6/29/2018 2:06:34 AM EDT
[#30]
Quote HistoryQuoted:
My very favorite gun. Quote HistoryQuoted:
Quoted:
A Callahan full-bore auto-lock, customized trigger, double cartridge and thorough gauge. 
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Posted: 6/29/2018 2:15:11 AM EDT
[#31]
Quote HistoryQuoted:
Smokeless powder contains it's own oxidizer, so it does not need atmospheric oxygen to burn. Quote HistoryQuoted:
Quoted:
Will gunpowder even combust in a vacuum? I’m sure if you peruse YouTube you’ll find some video of the mythbusters firing a gun in a vacuum chamber. I think it was done in relation to one fired underwater, but don’t remember. |
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Posted: 6/29/2018 2:32:26 AM EDT
[#32]
You'd probably want something liquid-cooled since there is no air to cool the gun in a vacuum, there is only radiation, which won't cool the gun quickly enough. Would have to use something that stays liquid at very cold temps.
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Posted: 6/29/2018 2:46:03 AM EDT
[#33]
Quote HistoryQuoted:
Lever action rifle or revolver. Because most guns won't cycle properly in space. |
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Posted: 6/29/2018 2:46:47 AM EDT
[#34]
Quote HistoryQuoted:
Will gunpowder even combust in a vacuum? |
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Posted: 6/29/2018 2:47:55 AM EDT
[#35]
Quote HistoryQuoted:
Since zero gravity means weight doesn't matter why not a howitzer with the hubble telescope mounted on top of it? Quote HistoryQuoted:
Quoted:
Need recommendations on the best of the best for combat in space. Actually shtf, no wait hd, eff it all of it. No budget here people. Any optics you think I should go with? What should I zero at? And go... Joking aside, lots of potential up there. No gravity does not equal no inertia. |
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Posted: 6/29/2018 2:49:19 AM EDT
[#36]
Quote HistoryQuoted:
You'd probably want something liquid-cooled since there is no air to cool the gun in a vacuum, there is only radiation, which won't cool the gun quickly enough. Would have to use something that stays liquid at very cold temps. Skip the liquid and just attach radiator fins to the heat source. |
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Posted: 6/29/2018 2:55:42 AM EDT
[#37]
Quote HistoryQuoted:
Will gunpowder even combust in a vacuum?
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Posted: 6/29/2018 2:57:02 AM EDT
[#38]
I guess your optic could have a pretty simple reticle, no BDC or Mildot necessary without gravity.
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Posted: 6/29/2018 2:58:42 AM EDT
[#39]
Quote HistoryQuoted:
Normal firearms require lubricants that would turn into wax or freeze in extreme temps in a vacuum. Quote HistoryQuoted:
Normal firearms require lubricants that would turn into wax or freeze in extreme temps in a vacuum. here is vacuum welding, expansion and contraction of metal under the sunlight and shade temperature differentials that breaks shit. Spare mags would need to be kept in thermally insulating mag pouches too. Nothing aluminized mylar and dacron can't fix. Everyone always thinks space requires space-proof hardware. It does not. It requires some cheap crap between you and space:  Attached File |
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Posted: 6/29/2018 3:00:15 AM EDT
[#40]
Quote HistoryQuoted:
I guess your optic could have a pretty simple reticle, no BDC or Mildot necessary without gravity. |
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Posted: 6/29/2018 3:01:53 AM EDT
[#41]
As for what range for zero, I’d recommend a 100 lightyear zero. The bullet drop at 100 light years in free space is a good baseline to go off of
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Posted: 6/29/2018 3:22:22 AM EDT
[#42]
Quote HistoryQuoted:
Will gunpowder even combust in a vacuum? Assuming microgravity, point blank is infinite, no velocity loss for any range, practically speaking. No bullet drop. No windage. It's pure ballistics and relative velocity. NO DIFFERENCE BETWEEN THE TRAJECTORY OF BULLET WEIGHTS. The only difference is time of flight, which for practical calculations, is a constant relative to velocity. Issues: 1. You will need to set the sight, whichever you choose, to perfectly flat. No more setting zero with an assumed upward bore axis. Line of sight and line of bore will now be parallel. 2. Rather than figuring bullet drop, and windage for conditions, plus a moving target when applicable, now you need only figure relative velocity. 3. IMHO, tracers, 100% tracers, would be best for standard issue ammo. Tracers lead back to the shooter, so a delay burn is better. Say, ignition at 100 yards. 4. A highly variable, highly magnified scope would be nice, but really, a long burn tracer and iron sight would be even better. A 3000 meter burn would be great. Remember, bullet weight and ballistic coefficient no longer apply. Pack the tracer compound in there. Basically, if you can see it, you can hit it, virtually, forever. You can double the bullet length of a 5.56, use it all for extra tracer compound, and that measly 2200 MV is still 2199 fps at 3000 yards, in space. |
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Posted: 6/29/2018 3:22:46 AM EDT
[#43]
Quote HistoryQuoted:
Lever action rifle or revolver. Because most guns won't cycle properly in space. |
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Posted: 6/29/2018 3:23:21 AM EDT
[#44]
Quote HistoryQuoted: Since zero gravity means weight doesn't matter why not a howitzer with the hubble telescope mounted on top of it? |
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Posted: 6/29/2018 3:24:19 AM EDT
[#45]
Quote HistoryQuoted: This yet Newton's Law is still in effect. So how effective would it be? 0G and something that propels a round what would happen? Rocket type projectiles are better for space. |
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Posted: 6/29/2018 3:25:07 AM EDT
[#46]
Quote HistoryQuoted: Recoil operated ones, maybe. But I don't see why a gas operated gun would have a problem in zero G. |
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Posted: 6/29/2018 3:27:12 AM EDT
[#47]
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Posted: 6/29/2018 3:28:19 AM EDT
[#48]
Quote HistoryQuoted:
gyrojet will return Rockets that take off slowly and accelerate are only necessary or beneficial when starting from a gravity well. Jules Verne's gun would have worked fine orbiting at L5. Just make it double ended, and the forces equal from both directions. |
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Posted: 6/29/2018 3:29:07 AM EDT
[#49]
Quote HistoryQuoted: I say go for a low height over bore optics setup, and zero so that the optic is set parallel to the bore. The trajectory would be so flat up there that training to shoot knowing that impact will be a near fixed point below the sight/optic, would likely be easier than setting an intersect point at some distance and the requirement of varying hold-under's. Without bullet drop, parallel just seems simpler than playing with angles 
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Posted: 6/29/2018 3:30:25 AM EDT
[#50]
but what if you happened to be stationed in geosynchronous orbit over NY?
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