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Storing loaded magazines with zip lock bags (or alternative) question

Posted on 1/30/21 at 8:49 am
Posted by jlovel7
NOT Louisiana
Member since Aug 2014
24072 posts
Posted on 1/30/21 at 8:49 am
I keep the majority of my ammo stored in mags and boxes in metal and plastic ammo cans with oxygen absorbers inside in a climate controlled environment. Seems like that’s a pretty common and acceptable method of storage. Well I’d like to keep some loaded magazines in my main gun bag so I don’t need to dig and reload and just be ready to head to the range. This bag stays climate controlled most of the time (never gets left in the car for sure) but I’m new to the firearm game and I didn’t want to just leave ammo out unsealed for potentially long amount of time if there’s an easy way to keep it sealed and fresh.

So my first thought was to keep the magazines tightly sealed up in a ziplock bag with an oxygen absorber inside. Is this good enough? Unnecessary? Or is there a better method I should use for storing a few mags this way? Obviously an ammo can won’t fit in the bag.

TIA
Posted by biglego
San Francisco
Member since Nov 2007
84575 posts
Posted on 1/30/21 at 8:55 am to
Ammo will be fine if it’s mostly in a climate controlled environment. No need to seal it and all that.
Posted by jlovel7
NOT Louisiana
Member since Aug 2014
24072 posts
Posted on 1/30/21 at 9:01 am to
quote:


Ammo will be fine if it’s mostly in a climate controlled environment. No need to seal it and all that.


Any idea of in it spends time not in a climate controlled environment how long it takes to really affect the performance?
Posted by civiltiger07
Baton Rouge
Member since Dec 2011
15062 posts
Posted on 1/30/21 at 9:10 am to
quote:

spends time not in a climate controlled environment how long it takes to really affect the performance?


Temperature affects the performance.

If moisture gets to the ammo it won’t fire. How long does it take to do that? Getting wet one time.
Posted by Eli Goldfinger
Member since Sep 2016
32785 posts
Posted on 1/30/21 at 9:24 am to
Modern powders are stable.
No need to worry too much.
Posted by deeprig9
Unincorporated Ozora
Member since Sep 2012
75243 posts
Posted on 1/30/21 at 9:37 am to
How long in a Walmart bag in my garage?
Posted by Clames
Member since Oct 2010
19523 posts
Posted on 1/30/21 at 9:46 am to
quote:

Temperature affects the performance.



Extreme temperatures do, temperatures you wouldn't survive at for very long and will never find in Louisiana.


quote:

If moisture gets to the ammo it won’t fire. How long does it take to do that? Getting wet one time.


If the ammo is military surplus then, covered in 10 cm of water in a vacuum chamber for 24 hours, it shouldn't gain more than 0.01 grams of moisture. It will still fire though.

Even commercial pistol and rifle ammo is basically hermetically sealed and unless left soaking in water for hours it will be fine. I've seen ammo exposed to salt-fog tests that still fired once some of the crud was scraped off.
Posted by civiltiger07
Baton Rouge
Member since Dec 2011
15062 posts
Posted on 1/30/21 at 9:52 am to
Damn baw you got all in the weeds.

When I said temperature affects the performance I mean it affects the velocity. They do have powders now that aren’t affected very much but some powders are.

I was not implying that temperature changes could cause the ammo to not fire if that’s what you thought.

And if water gets into the case it won’t fire. How long does that take? I don’t know but it only takes once.

Posted by upgrayedd
Lifting at Tobin's house
Member since Mar 2013
138865 posts
Posted on 1/30/21 at 10:12 am to
Just keep in your bag as is. No need for putting it in plastic bags.
Posted by AmosMosesAndTwins
Lake Charles
Member since Apr 2010
19013 posts
Posted on 1/30/21 at 10:14 am to
Wrap in cling wrap, put in Tupperware, store in vegetable drawer of refrigerator.
Posted by tenfoe
Member since Jun 2011
6978 posts
Posted on 1/30/21 at 10:16 am to
The least reliable ammo I’ve ever shot is 22lr. Usually have about 2-3 duds per brick. I’ve run two loaded mags through the washing machine on accident and all but one fired. So to extrapolate with fake math it doesn’t really statistically matter.
Posted by upgrayedd
Lifting at Tobin's house
Member since Mar 2013
138865 posts
Posted on 1/30/21 at 10:18 am to
quote:

Wrap in cling wrap, put in Tupperware, store in vegetable drawer of refrigerator.
Posted by civiltiger07
Baton Rouge
Member since Dec 2011
15062 posts
Posted on 1/30/21 at 10:25 am to
Guess I should have said if water gets in the ammo to the primer/powder it won’t fire. I didn’t mean that if the outside of the case got wet it wouldn’t fire.

That is why I said I don’t know how long it would take for moisture to get in the case.

The moral of the story for the OP is that what you are doing will be fine. In fact you are probably over thinking this.
Posted by Notnac
Vidalia
Member since Nov 2020
881 posts
Posted on 1/30/21 at 12:31 pm to
I think you’re overthinking it. It takes long exposure to humidity/ elements to really do damage. We’re talking years.
I plinked some 10 year old ammo that’s been sitting in my camp today. The camp is only climate controlled when I’m there. Everything fired.
Posted by BoogerNuts
Lake Charles
Member since Nov 2013
938 posts
Posted on 1/30/21 at 12:50 pm to
I always save any silica packets I get that come with anything I buy and keep them with wherever I have ammo that I don't plan on using anytime soon. Probably doesn't really matter, but.....whatever.
Posted by jlovel7
NOT Louisiana
Member since Aug 2014
24072 posts
Posted on 1/30/21 at 1:46 pm to
quote:

I think you’re overthinking it. It takes long exposure to humidity/ elements to really do damage. We’re talking years.
I plinked some 10 year old ammo that’s been sitting in my camp today. The camp is only climate controlled when I’m there. Everything fired.



Sounds good enough for me
Posted by jbgleason
Bailed out of BTR to God's Country
Member since Mar 2012
20114 posts
Posted on 1/30/21 at 1:51 pm to
I shot some WWII surplus (maybe Korea) Garand ammo and it was fine.

Also, I know what you meant but a desicant pack absorbs moisture not oxygen. I mean, if it absorbed all the oxygen what would we breathe.
Posted by Lsudx256
DFW
Member since Mar 2016
3460 posts
Posted on 1/30/21 at 2:21 pm to
If hold on to ammo long enough to worry about that, then you are shooting fast enough. I have shot some of my dads ammo that he probably bought 30 years ago. No issues.
Posted by Clames
Member since Oct 2010
19523 posts
Posted on 1/30/21 at 2:23 pm to
quote:

When I said temperature affects the performance I mean it affects the velocity.


Those tempertures require a significant delta and are a non issue unless you are a sniper or competition long-range shooter.

quote:

And if water gets into the case it won’t fire. How long does that take? I don’t know but it only takes once.


It would have to be underwater, for a while, to have any potential effect. I store my loose ammo in good ammo cans, the stuff still in boxes just goes in the ammo cabinet above the safe. My house is a climte-controlled environment so there's no reason to do more.
Posted by SneakyWaff1es
Member since Nov 2012
4157 posts
Posted on 1/30/21 at 2:59 pm to
quote:

My house is a climte-controlled
Subtle, "I have air conditioning," brag.
quote:

I store my loose ammo in good ammo cans, the stuff still in boxes just goes in the ammo cabinet above the safe.

Not so subtle, "I have ammo," brag.
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