Not a fan of storing primed cases, since the cases can tarnish over time, and like to give the case a quick tumble to gleam them back up before they are reloaded.
So if the cases are tarnished, then you can run them through the sizer and case neck expander again, which will knock out the live primers so the case can be re-tumbled to clean them back up, and the ejected live primers can be put back in the cases afterwards.
Note, don't tumble primed cases, since the dry method will end up with media in the primers to block the flash channels, and wet tumbling will make a mess of the primers isntead.
Just go slow with steady stoke on knocking out the live primers with the decapping pin on the sizer die, and you will not have any problems igniting the live primers so they can be reused again.