How many of you relax your magazine springs? - MP-Pistol Forum

How many of you relax your magazine springs?

This is a discussion on How many of you relax your magazine springs? within the Polls forums, part of the Smith & Wesson MP Forum category; I was recently reviewing my written notes from two of the firearms classes I completed in 2008. One of my notes says to relax your ...


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Old July 6th, 2009, 03:19 PM   #1
 
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I was recently reviewing my written notes from two of the firearms classes I completed in 2008. One of my notes says to relax your magazines at least once a month for at least overnight. I have been doing this, especially with 4 mags to have ready. 2 are empty, and 2 are loaded at all times. Just wonderin' how many others do this too?
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Old July 6th, 2009, 03:30 PM   #2
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I would do it if i got my 2 free extra mags in the mail from S&W....not to beat a dead horse or anything
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Old July 6th, 2009, 03:34 PM   #3
 
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I've always been told that leaving them compressed causes far less wear than cycling.Mine get relaxed when the carry ammo in them is ready for retirement.After they start to weaken they get designated as training/range mags.
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Old July 6th, 2009, 03:44 PM   #4
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I'll start with the fact that magazines are consumables. They will wear out over time, they will get dinged up after being dropped for reloading, springs will get weak, feed lips can crack, etc, etc, etc. While it's good to take care of them, don't fall in love with them, they will need replacing someday.



Springs get fatigued one of two ways, excessive cycling, or overloading (moving beyond their designed range). Since the magazine body prevents them from compressing or extending more than designed, that leaves cycling. Every time a magazine is loaded or unloaded it is taking away some of the life of the spring.



Think about the springs holding up your car or truck. They are constantly loaded supporting the weight of the vehicle, but it is within its design parameters. Remove the interferences and over load them and they will weaken quickly, or use the same springs for a million miles and they will get tired. Much like a paper clip being bent over and over again, if it is bent a small ammount it can take a lot of cycles, but will eventually break. Bend it a large ammount and it takes less bends to break it. Bend it a medium ammount and let it sit there and it will never break.



Cliff notes, if you want to leave them loaded, then leave them loaded, but by emptying them just for the sake of rotating them is actually doing more harm than good.
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Old July 6th, 2009, 05:15 PM   #5
 
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I shoot my guns too often to worry about relaxing the magazines. None of my mags stay loaded with the same ammo for more than a week or two.
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Old July 6th, 2009, 06:26 PM   #6
 
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Springs are cheap and available from many sources. If my magazines want to relax they can do it on their dime, not mine. After 36 years of marriage, I have finally been given permission to be able to relax for 10 minutes every 4 hours. The magazines have not been given the same.
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Old July 18th, 2009, 05:51 AM   #7
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Quote:
Originally Posted by The Jerm' post='215869' date='Jul 6 2009, 07:34 PM
I've always been told that leaving them compressed causes far less wear than cycling.Mine get relaxed when the carry ammo in them is ready for retirement.After they start to weaken they get designated as training/range mags.


I agree. Leaving them in the same position is less damageing
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Old August 4th, 2009, 03:55 AM   #8
 
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I partially unloaded all my magazines after reading Vickers opinion on the matter.



http://vickerstactical.com/tactical-tips/magazines/



Kinda makes sense-I'm takin his word for it though.



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Old January 10th, 2014, 12:22 AM   #9
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I unload/relax the springs in my mags every time I go to the range!
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Old January 10th, 2014, 02:12 AM   #10
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Except for being unloaded at the range (when the bullets leave the barrel headed downrange) I have magazines that have been loaded for 30 years or more.

My M14/M1A magazines (4 or 5 of them that I keep loaded) have been loaded since 1978.

My 1911 magazines (the old ones are from 1978, the newer ones from the late 1990's) have been loaded as well.

Any pistol not in the gun safe has loaded magazines. If, someday, I find my M&P magazines, or my XDM magazines failing. I'll unload them, sell the guns, and bring my extra 1911's back out of the gun safe (only 2 are out right now).

Same for the AR15's. If those magazines (6 to 8 years old right now) start to fail some day, the ARs are gone and the M1A comes back out of the gun safe. Piss on shit that fails. If I can't depend on it, I don't want it. I know, occasionally, you get a bad spring, or a bad pin, or a bad whatever. "A" failure is not an issue (unless it fails at a bad time) but if several start to fail, that just a design/manufacturing issue the designer/maker failed at and symptomatic of a sub par design/build.

Just my opinion. Sort of like a friend that retired from work a few years ago. his Dodge car's transmission failed at 30,000 miles. Dodge rebuilt it under warranty. Same transmission failed just short of the 60,000 mile warranty and again Dodge rebuilt it under warranty. He got it back and traded it in on a Buidk Le Sabre. At that point, you know either the design is bad, the parts that make it up are bad, or the people that put it together are failing and there's no reason to keep it as it will fail again.
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Old January 10th, 2014, 07:04 AM   #11
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I have 3 mags. Two stay loaded with SD ammo and the third is empty. I unload the SD ammo when going to the range, where all 3 get used for shootin'.
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Old January 10th, 2014, 10:05 AM   #12
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My mags stay fully loaded always unless I'm putting range ammo in them. And usually the first mag I shoot at the range is the one with my sd ammo that's been in it since cleaning.
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Old January 10th, 2014, 10:21 AM   #13
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I don't know if it helps one way or the other but I rotate my mags every couple of weeks.
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Old January 10th, 2014, 11:00 AM   #14
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I thought the best way to get the correct answer to this question is to ask a Magazine Manufacturer, so I sent the following email to Magpul.

to magpul
Could you please help clear up the issue of magazine spring fatigue. Should you periodically unload and "relax" the magazine spring? Will this help to increase the life or does it do more harm than good.


Here is their reply to me:

Jerry,

Thank you for your inquiry. The factor that truly wears out quality springs is compression cycles, not constant compression. However, we use a high-quality stainless steel springs in our PMAGs and if one ever does happen to wear out any USGI spec spring can be swapped out for the factory one.

Regarding the question of how long, we’ve had magazines fully loaded for over four years now with no Impact/Dust Cover on and have experienced no feed lip or spring issues. With the cover installed storage life is considered indefinite. There have also been PMAGS reportedly tested to hundreds-of-thousands of rounds (military vetting), and we know positively of ones that have gone tens-of-thousands, so usable life is quite excellent too.


Magpul
_____________________________________
TRICIA PARRISH SALES & CUSTOMER SERVICE
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Old January 10th, 2014, 11:28 AM   #15
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Quote:
Originally Posted by Jaysq View Post
I thought the best way to get the correct answer to this question is to ask a Magazine Manufacturer, so I sent the following email to Magpul.

to magpul
Could you please help clear up the issue of magazine spring fatigue. Should you periodically unload and "relax" the magazine spring? Will this help to increase the life or does it do more harm than good.


Here is their reply to me:

Jerry,

Thank you for your inquiry. The factor that truly wears out quality springs is compression cycles, not constant compression. However, we use a high-quality stainless steel springs in our PMAGs and if one ever does happen to wear out any USGI spec spring can be swapped out for the factory one.

Regarding the question of how long, we’ve had magazines fully loaded for over four years now with no Impact/Dust Cover on and have experienced no feed lip or spring issues. With the cover installed storage life is considered indefinite. There have also been PMAGS reportedly tested to hundreds-of-thousands of rounds (military vetting), and we know positively of ones that have gone tens-of-thousands, so usable life is quite excellent too.


Magpul
_____________________________________
TRICIA PARRISH SALES & CUSTOMER SERVICE
If anybody is an authority on mag springs... I'd listen to MagPul...

JW
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