I experienced no drought anymore than I had any problem finding 22 rimfires. At the height of the 22 RF panic I bought 5000 rounds for 5 cents a round.
While both Unique and 2400 are fine powders, if they went away tomorrow nobody would have to melt down their guns to make swords.
"When in worry or in doubt, run in circles, scream and shout,"
Prep away, you might get to survive a few more months.