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Old 03-19-2017, 04:46 PM
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Does leaving magazines loaded hurt the springs?



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It was suggested to me that leaving a 10 round rotary magazine loaded for long periods of time will cause the tension spring to take a set. Is this true?
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Old 03-19-2017, 07:15 PM
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Not that I've found. Had Glock 22 magazines fully loaded for 15 years, only unloaded when shot at the range and/or cleaned. No issues, never a malfunction. Not a rotary magazine but still the same idea.

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Old 03-19-2017, 08:12 PM
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Originally Posted by JBlaisdell View Post
It was suggested to me that leaving a 10 round rotary magazine loaded for long periods of time will cause the tension spring to take a set. Is this true?
In rifle loonie land... absolutely!

By the way, that's where I'm from.
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Old 03-19-2017, 08:31 PM
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Not that I've found. Had Glock 22 magazines fully loaded for 15 years, only unloaded when shot at the range and/or cleaned. No issues, never a malfunction. Not a rotary magazine but still the same idea.
Same here - years at a time and never had a problem in the least.
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Old 03-19-2017, 09:27 PM
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I wouldn't expect to experience a functional issue over many life times of continues full spring compression. I keep my Wilson Combat .45 mags loaded at all times. Would not be much use if they weren't. Haven't had an issue in decades.

Marker of ski binding fame used to use this as a ploy to market their binding because of the way the spring in the toe binding was never under tension until time of release. They stopped when they started selling various designs that used increasing spring tension against a cam to function. Most binding designs work this way. I've never heard of anyone backing off their ski bindings to stow for the summer. Nor have I ever heard of a binding manufacture recommending such a procedure.

Keeping your mags clean should be the priority.
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Old 03-19-2017, 10:14 PM
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YES.

Yes.
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Old 03-20-2017, 11:24 AM
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No. Look up Hooke's Law. If springs changed through use, Hooke's Law would not hold true.

When was the last time you changed the springs under your car?
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Old 03-20-2017, 08:08 PM
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I love me some Hooke's Law! Springs wear out through use, not through long term compression. Loaded magazines have been located from Vietnam, in Vietnam, all wet and nasty, and both the ammo and mag have functioned.

Car springs, however, do wear out. Notice how all land yachts from the 70s ride around lower in the rear? Those springs are weaker than the fronts, no engine to support, and wear at a faster rate, but the fronts have lost some 'spring' as well. Recoil springs in ARs have a lifespan of 5K rounds I think, don't recall offhand. The also recommend that competitive pistol shooters replace mag springs and recoil springs and such at certain intervals. Most of us will never shoot that much.

Long story short, you can leave your mags loaded, your strikers or hammers cocked, and your slides and bolts locked open.
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