claytbuster,
Was not aware that the US Supreme Court was considering the situation you're asking about. Might be pretty low on the Courts' list.
The only options that I am aware of is to purchase ammo thru a sporting good type store or start reloading on your own.
I prefer to reload my own as it give me a choice of recipes, hulls,, shot capacity, shot size desired & it's a fun thing to do! No hassle at all buying primers, powder, wads & hulls locally F2F. Also buy in quantities if possible.
..pete