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Old December 16, 2012, 11:18 PM   #1
Departed402
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DPMS LR-308 Steel Mags

I recently acquired a DPMS LR-308. My specific question is this: has anyone heard of any issues with leaving the DPMS mags loaded for long periods of time?

Further, are there any other issues with these magazines I should be aware of?

Finally, I ordered some Magpul .308 PMags for my gun. I'd assume these would have the same feed lip warping issues I've heard about when a dust cover isn't used with the 5.56 PMags. Any input?

Last edited by Departed402; December 17, 2012 at 04:00 AM. Reason: clarification
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Old December 17, 2012, 01:00 AM   #2
sailskidrive
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Use the cover on the MagPuls or they WILL bend at the feed lips over time. You will find the 308 MagPuls a little more flexible than the 556s, due to their larger dimensions they are less rigid. That being said they work great.
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Old December 17, 2012, 04:01 AM   #3
Departed402
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Thanks sailskidive. Does the dust cover prevent feed lip warping on the 7.62 PMags like the 5.56 PMags?
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Old December 17, 2012, 08:46 AM   #4
globemaster3
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Take it FWIW, but I left a couple mags loaded for 6 months on my last deployment. When it came time for ammo turn in, there wasn't much in the way of spring tension on the rounds.

These were USGI mags obviously, and not DPMS LR308 mags, but something to think about. How long can you compress a spring before it loses its tension?
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Old December 18, 2012, 10:35 AM   #5
velocette
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I have 3 DPMS mags & 2 C products mags for my LR 308. All 5 have been kept loaded all the time. All are about 5 years old, They work perfectly. NO loss of spring tension, NO feed lips bending, NO problems at all.
The plastic mags may need the top cap, but the steel ones sure don't.
When you get your new steel mags, all you need to do is to deburr the feed lips and the mag followers, then use a dry lubricant inside and out of the mags. You'll have no problems.

Roger
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Old December 18, 2012, 07:14 PM   #6
sailskidrive
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Quote:
These were USGI mags obviously, and not DPMS LR308 mags, but something to think about. How long can you compress a spring before it loses its tension?
Very strange, as springs fatigue from the compression and expansion cycle. If they are only compressed, they should last years.
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Old December 19, 2012, 09:00 AM   #7
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Who knows, I'm most definitely not a spring expert. And the mags age could have something to do with it. I was handed 7 out of a bin going through Supply issue.

All I can tell you with certainty is that those couple mags I left loaded with a full 30 were absolutely loose when stripping the rounds out, much more so than the others which I had only occasionally loaded and my personal ones at home.

I loaded a couple PMAGS before I left for the wife to have in case she needed to use one of our ARs in my absence. I'll go look at those and tell you what I find.

The rest of my personal mags sit empty until needed.
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