Resting magazine springs....

[totegoat]

Mags were made by International Silver, National Postal Meter, and Union Hardware.

1 Type II, 1 Type III, and 2 Type V

A lot of info available.

 

[Lapham3]

FWIW-We found a loaded GI .45 in a relatives footlocker in 1977. It had 1917 headstamped ammo and had been sitting since 1945. I took it to the range and they all went bang.

 

[billt460]

Originally Posted By: Lapham3
FWIW-We found a loaded GI .45 in a relatives footlocker in 1977. It had 1917 headstamped ammo and had been sitting since 1945. I took it to the range and they all went bang.


After reading stories like this one, along with what Cooper wrote on the subject, the whole point of "compressed springs" is moot.

 

[GeorgeKaplan]

I was shooting long before the birth of the Internet and was always told that the only thing that will wear a magazine spring out was cycling. Then again, that was before the wonder nines and the only real semi-auto pistols at the time we're 1911's. I'd imagine what I was taught still applies.

 

[totegoat]

Of the 4, 2 were fairly clean and 2 were really gummed up with heavy grease, probably cosmoline.

 

[bulwnkl]

Originally Posted By: bubbatime
Springs wear out with ... being over compressed.


Poorly designed, or poorly built, magazines can therefore see their 'springs' go bad from the magazine simply being fully loaded. They _shouldn't_, and absolutely would not if designed and built with even reasonable care, and properly-made spring steel. However, cheapness and/or greed and/or pure ignorance (or stupidity?) has sometimes won.