Our business doesn't have a magic wand to make ammo appear. The ammo we are shipping out to customers today is ammo that we bought months ago and have been storing for them. If we don't have enough ammo to allocate to your inventory (and thus ship out on demand) then we put it on backorder status.
Backorders are filled in chronological order as we get new shipments of ammo it. Think of it as though we are standing in a virtual ammo line for you. You don't have to change anything from your regular subscription - ammo will be added to your inventory as soon as it comes in.
If you don't want your ammo to be on backorder you can swap out any backordered ammo for credit or something that is currently in stock. You'll need to send a support ticket to our customer service team with your request because stock levels are constantly changing.