Do Magazines Wear Out?

[Sergio Natali]

I would concur with calibrator, FWIK

a quality spring only wears when it goes through many compression and relaxation cycles. A spring under constant compression should not lose it's force.

Probably also depends on how long the spring remains compressed, anyway I can't remember where I read about a WWII pistol found in the sands of North Africa with a mag still loaded and perfectly working.