Liberty wrote:The biggest enemy of ammo storage is corrosion. If it looks OK its probably OK. But another issue is setback, if you store the ammo in the magazine (clip?) the inertia of the jostling around can cause the bullet to move within the brass. If the brass compresses against the powder there could be an over pressure condition.
I think it's a good idea to run the old ammo through once in a while anyway. First reason is to not give ammo time enough for setback issues, the other is ensure that the defence ammo is still cycling well through your handgun.
This is the first time I've ever heard of ammo that is just sitting in a mag suffering setback. Where did you hear this?