Do not vacuum seal your ammunition!

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the russians shot a satellite from one of their space labs with a 20 or 30mm cannon so a round will fire in the vacuum of space.
 
I was a crew chief on F-15s so here's my 2 cents:

The survival packs on an ejection seat contain numerous flammable / pyrotechnical items. (flares, extra rounds for the 9mm, fire starter kits, etc..) These, along with almost everything else are vacuum pack using an industrial sized unit. (about 2' square)

Last time I around the survival equipment guys (2A7X4s) they checked the "flammables bag" about every 6 months.

So far as the seat itself, it's a very complicated bit of kit that contains rocket motors, ballistic tubing, (basically det cord in a hard tube) Ballistic cutters, and sometimes Linear Shaped Charges (LSC) to cut metal.

From pulling the handles to clearing the cockpit takes about 1.8 sec.
 
sealing

you would seal ammo to keep the container from getting wet.as to cold and hot my ammo is in my garage all yr.hot in summer cold in winter.most is in 30/50 cal ammo cans.its also 10/15 yrs old and some is 40 ys all goes bang.
some of you think to much and confuse your selfs.
cotton is nitrated then ether is used to desolve it,and make it into a jelly where its extruded or othewise made into strings or balls.then its dried to remove most ether.there are other chemicals added when mixing.I dont think lead stifonate(?) is used any more as they got rid of the lead formular.
there ar many sorces to find the correct information.:rolleyes::uhoh:
 
so ---what youall are saying is if you vac seal a pilot and he flies his f-16 into outer space at mach 7 and ejects while firing his duty wepon they will both work.:what:

i guss my question is would the bullet leave the gun since the gun is traveling faster than the projectile velosity is suposto be?:evil:

sorry to the op for the thread twist but i love to get the techies going, a cupple of them will be up all night to try to figure it out.:neener:
 
First, what is that "Winchester White Box 9mm." What is the headstamp? There is still a lot of white box 9mm floating around from WWII, loaded for the British in 1940-1941. A lot of it was stored improperly and will no longer go off. The headstamps show the date, in the military manner.

Gunpowder does not "detonate", it burns, and its oxygen is contained in the powder itself. In the case of nitrocellulose, or cellulose nitrate, the oxygen is in that "ate".

Detonation of gunpowder, or use of a detonating compound instead of gunpowder, will almost always blow up the firearm, since the detonating shock wave destroys the weapon.

Jim
 
I'm going with 'vacuum inside the cartridge' takes some oomph out of the explosion. Seems like a neglible pressure difference given how much is generated by a cartridge going off, but if there's any connection that's probably it.
 
To those that think brass will "sweat". NONONONONONO. The change in temp may cause moisture from the air to condensate upon it, but it in no way "sweats".

For those that think the air got sucked out of the case. NONONONONONONO. If this happened, it would be very obvious, as the case would collapse like a crushed beer can.
 
Really?

C'mon people:
A conventional firearm would, under most circumstances, work perfectly well in space.

It’s true that there’s no oxygen in the abyss of space, but the firing of a gun doesn’t depend on oxygen even here on earth. Or, rather, it does, but not on the oxygen in the atmosphere.
Click to expand...
Emphasis mine.

Vacuum sealing has zero effect on ammunition, other than keeping it dry and stopping it from rattling. I seal .22 LR and 9mm (including WWB) for my BOB, and I've never had ammo that wasn't already bad go bad.
 
No, neither vacuum sealing ammo nor the supposed "vacuum" inside the cartridge causes misfires or weakness. IMHO, this whole thread is just plain silly (except for the info on ejection seats).

Jim
 
If anyone wants to experiment, kerosene is a great way to protect chemicals from oxygen. So you could try putting a few cups of power in a bowl in your kitchen, pouring kerosene on top, and then seeing if the power would still burn...

Actually, please don't try this at home ;)
 
I may be mistaken but I have bought lots of surplus commy ammo in spam cans that I think are vacuum sealed and it all shoots fine. About 5 years ago I shot some 40s era 7.62x54r with no problems at all.
 
firesky101 said:
but how do zombie threads react to vacuum? Good read though, missed this one the first time.
Click to expand...

Don't think I'd seen it before either, so there is something to be said for ressurection. I don't think the physics involved have changed in 2 years. :D

Been considering vacuum packing for long term storage since I've run out of ammo cans & I have a problem paying $15 or more for one. :fire:

If RCModel sez it's not a problem I'll go with that....;)

Now... how to get that vacuum on my jars of primers... :D
 
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