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3/7/2016 12:46:34 AM EDT
I have around 40 pmags that have been loaded and stored in a couple ammo cans with dust covers on for 4 years. What should I do with them?




Leave them loaded in the ammo cans for another 4 years or unload the mags?  Replace the springs?
3/7/2016 12:48:01 AM EDT
[#1]
Shoot'em.
3/7/2016 12:48:50 AM EDT
[#2]
Keep em loaded until you can replace what you shot. Noting will happem. Your grandkids can shoot the mags you loaded just fine
3/7/2016 12:50:12 AM EDT
[#3]
They are not dust covers.
3/7/2016 12:50:16 AM EDT
[#4]

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Quoted:


Shoot'em.
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Nah. I've got a regular rotation of range mags I shoot with.
3/7/2016 12:50:25 AM EDT
[#5]
3/7/2016 12:50:27 AM EDT
[#6]
Those springs are just fine. And will be for decades.
3/7/2016 12:50:49 AM EDT
[#7]
Springs probably defective, send to me for proper testing...

ETA:  testing only works if mags remain loaded throughout shipping to final destination
3/7/2016 12:50:50 AM EDT
[#8]

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Quoted:


They are not dust covers.
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Whatever bro. They keep the dust out of my clips.
3/7/2016 12:50:54 AM EDT
[#9]
Springs wear with use.  Leave em compressed as long as you want.
3/7/2016 12:52:53 AM EDT
[#10]
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Quoted:
Whatever bro. They keep the dust out of my clips.
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Quoted:
Quoted:
They are not dust covers.
Whatever bro. They keep the dust out of my clips.

I believe they were designed to take some of the pressure off the plastic feed lips, but everyone calls them dustcovers.
3/7/2016 12:53:03 AM EDT
[#11]
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Quoted:
Whatever bro. They keep the dust out of my clips.
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Quoted:
Quoted:
They are not dust covers.
Whatever bro. They keep the dust out of my clips.

LOL!  I see what you did there!
3/7/2016 1:00:05 AM EDT
[#12]
Leave them alone.
<--shot some 10 yr old GI mags a few years back. Ran fine.
3/7/2016 1:13:54 AM EDT
[#13]
Load them all! You may not have time when you need them!

Hessian-1
3/7/2016 1:15:11 AM EDT
[#14]
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Quoted:
Load them all! You may not have time when you need them!

Hessian-1
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There is nothing as worthless as an unloaded magazine when you need one. Or a hundred.
3/7/2016 1:15:34 AM EDT
[#15]
get 47 more, load those, and keep em until SHTF!!
3/7/2016 1:27:37 AM EDT
[#16]
Time does not wear out springs (unless you want to get into corrosion).  There is no reason to unload them other than to fire the ammo and reload them.
3/7/2016 3:20:54 AM EDT
[#17]
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Quoted:
Keep em loaded until you can replace what you shot. Noting will happem. Your grandkids can shoot the mags you loaded just fine
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I want to say S&W had an article years ago that I've never been able to find, that said the same thing....load them and forget them.  You are not wearing out the spring.
3/7/2016 3:29:17 AM EDT
[#18]
Quote History
Quoted:

I believe they were designed to take some of the pressure off the plastic feed lips, but everyone calls them dustcovers.
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Quoted:
Quoted:
Quoted:
They are not dust covers.
Whatever bro. They keep the dust out of my clips.

I believe they were designed to take some of the pressure off the plastic feed lips, but everyone calls them dustcovers.


Someone ought to tell Magpul to stop misleading their customers by calling the dust covers that they manufacture, dust covers.

https://www.magpul.com/products/pmag-impact-dust-cover-ar-m4-gen-m2-moe
3/7/2016 3:33:20 AM EDT
[#19]

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Quoted:


Those springs are just fine. And will be for decades.
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This I shot some mags I had loaded from 2003 and the did fine

 



They were old usgi mags
3/7/2016 3:37:32 AM EDT
[#20]
I'm going full circle back to USGI lately
3/7/2016 3:47:30 AM EDT
[#21]
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Quoted:
I'm going full circle back to USGI lately
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Same here.
3/7/2016 4:29:56 AM EDT
[#22]
Springs wear out from movement, not from being compressed.  They're fine.
3/7/2016 4:30:46 AM EDT
[#23]
Quote History
Quoted:

I want to say S&W had an article years ago that I've never been able to find, that said the same thing....load them and forget them.  You are not wearing out the spring.
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Quote History
Quoted:
Quoted:
Keep em loaded until you can replace what you shot. Noting will happem. Your grandkids can shoot the mags you loaded just fine

I want to say S&W had an article years ago that I've never been able to find, that said the same thing....load them and forget them.  You are not wearing out the spring.


I've read the articles posted here many times about the science of springs and whether to keep mags loaded, unloaded, or rotate them,
and the experts agree that rotating your mags weakens your springs the most, and that keeping them loaded or unloaded has the least effect.

It's funny to me that S&W said this... my experience differed greatly from what the experts said.
I bought a brand new S&W 459 in 1987, and I shot it a few times to get used to it. Since this was my primary carry weapon, I kept both mags loaded all the time.
I didn't shoot the gun again until sometime between 1994 and 1999, and after I shot about 2 or 3 rounds at the most, the springs in BOTH mags did not have
enough life left in them to push the next round to the top of the magazine.
3/7/2016 1:04:43 PM EDT
[#24]
It is decided.  I will leave them loaded and load even more mags.
3/7/2016 1:08:39 PM EDT
[#25]

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Quoted:


I'm going full circle back to USGI lately
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I buy whatever is the cheapest at the moment.  That magazine fort isn't going to build itself.

 
3/7/2016 1:32:35 PM EDT
[#26]
There's a reason Col. Cooper said "all guns are always loaded"