If your homestate seceded tomorrow...that would void any Federal laws regarding firearms. I don't know of any law in Texas or Louisiana that forbids fully automatic weapons. Only federal. That would mean that, if say, Texas and Louisiana formed their own confederacy (say Confederate States of Texiana) then gun companies could produce, import and sell to anyone full automatic weapons in those states. In fact...wouldn't this eliminate background checks and paperwork and all that garbage you have to go through now? It's fun to dream.....for you have to dream before you can do.