I've been thinking of loading a few of my AR and AK mags and sticking them in ammo cansI already know that the spring will not be hurt but what about the feeding lips? I have steel, aluminum, and a couple pro-mags but I have heard that aluminum magazines if they are kept loaded for a few years the lips will quot;swellquot; causing feeding issuesWhat about steel? Would dust covers allieviate that?I would bet that I won't run into any issues with my AK mags since they are all steel and from better countries of origin like Bulgaria and Yugoslavia.