I am going to the range soon. I went to grab some ammo at Walmart and they were out of 9mm and .380. They had plenty of shotgun ammo and .22lr. If a nationwide crises happens I believe that 9mm will go first. It will probably be the most difficult caliber to find because federal agencies use it. I just got a .380 for my potential EDC but I am rethinking this decision. I think I will just get proficient with .22lr.