The Answer
PCRCCW said:
They will stay good indefinately.............seriously. Just don overcompress the springs and your good.
Bingo. OVER-compression of the springs is a killer, and assuming a good
quality spring, keeping the magazine loaded for extended periods won't
weaken it very much. Using it will hasten the spring's demise, but not
very quickly, again assuming a GOOD spring. There are a lot of shoddy
ones out there. When you think springs, think Wolff. They've got a
firm grip on how to make a good spring.
My habit is to load 7 rounds in a 7-round magazine, lock the slide back,
lock the magazine in, and chamber the top round. I don't lock in a magazine if the slide is in battery, I don't carry the gun as a 7+1,
and I rotate the carry magazines every month.
Magazines in long-term storage are disassembled, the followers taped to
the tube with the spring, and allowed to completely relax until called up.
My springs are happy springs...Yes indeed!
Git sprung!
Tuner