Most informative and interesting even though most pump shotguns(and autos) are now banned in OZ after a certain asmanian Massacre a few years ago, though one was not used!
Generally, as regards springs under tension, I remember well a WW2 German Heinkel plane wreck being dug up from a meadow near us when I lived in UK. A P38 pistol was found in the muddy wreckage and to the policeman's surprise (who made it safe and made sure it didn't get into the blackmarket -as pistol are a no-no in England), the 9mm ammo in the magazine was still all there, and still under perfect spring tension 33 years later !
So as regards springs in magazines under tension remaining loaded -I have not worried since!
But I do ease firing-pin springs though for storage, a case of safety I suppose?
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***Big Bunny***
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