Greeting's Gentlemen:
As my friend Mr. Camp said, loading and unloading magzines
causes more wear and tear on the spring assembly, than does
leaving them fully loaded; at least that has been my experience, also. I will shoot all loaded magazine's about
every six month's, or so; then re-stoke them (after cleaning) for future use. I've experienced 0 problems from
Sig, Browning Hi-Power, or Glock magazines. The only exception to this rule is my Ruger MK-II KMK-512 .22LR;
and I don't even keep an empty magazine in this firearm.
Best Wishes,
Ala Dan, N.R.A. Life Member
Tip Of The Day: For Ruger MK-II .22 Cal L.R.
Ruger magazine release is under constant pressure, when a
magazine is inserted. Over time, the magazine release will
loose tension and have to be replaced. So, in order to avoid
trouble, I just don't insert a magazine, til I'm on the firing line and ready to shoot.