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Leaving Magazines Loaded For Extended Periods?

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TopGlock2009:
I recently read an article pertaining to the rotation of the first three cartridges in a magazine. The reason for the rotation is based on the first cartridge being loaded and unloaded numerous thus leading to malfunction at some point in the future.

While this is a practice that I have been using for some time on my CCW (Glock 27), I would like to get some feedback on how others feel about leaving magazines loaded for extended periods. Has anyone experienced any problems with doing this?

Good or bad, this is something that I have done for some time with both my Glock 19 and SR556 magazines.

Any feedback?

Gunscribe:
The idea behind rotating the few rounds out is the thought that constant loading and unloading of the rounds in the chamber will loosen the bullet setting it back in the case. When rounds with set back bullets are fired they generate higher pressure than a normal round. In some cases that pressure may be too much for the firearm and something bad happens.

As far as the length of time to leave them loaded, consider that loaded 1911 magazines from WWII are still being found in Grandpas attic and they still function perfectly fine. Think how much better metallurgy is today than it was back then and it should be even less of a problem now than it was then.

I would however subscribe to Colonel Coopers advice. If it bothers you to leave a magazine loaded for an extended period of time, swap unloaded for loaded ones once a month when you pay your bills.

OnTheFly:
I leave two of my four PX4 magazines loaded all the time.  I also rotate the first three rounds on each magazine.  I have not had any personal issues with leaving the magazines loaded; however, I am a relatively new shooter compared to others on this forum.  I have read on other forums, that the experts say what wears out a magazine spring is use (i.e., expansion and compression), but not leaving it fully compressed.

Fly

justsomeguy:
Or try this. When you feel it is time to "rotate" your ammunition, go to the range and practice actually using your sidearm. Then replace the ammunition with new.

Dan W:
Every mag I own is fully loaded at all times, unless I just finished emptying it ;D

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