yes. I preloaded all the mags for my m1 before a weekend trip that got postponed for about a month finally got to go first two ran great third mag pop pop jam the spring had broken inside the magazine and not allowed it to feed properly. I quit preloading after that and have never had another spring fail. coulda been random, but I won't leave one loaded up anymore.
notice austin with all your math I didn't say the spring could lose its elasticity i said it could fail, springs break all the time in all kinds of different applications.