Powder "shortages" are weird to say the least. There is a gun shop 15 miles away from my property in Tennessee and they have all the pistol powders you could want. Bullseye, Unique, Power Pistol, WW296, H110, etc. I have been there three different times since April of last year and each time I was in the store the shelves were STOCKED.
Yet I have not seen any of these powders on the shelf at any store in Colorado in 18 months. When I asked the guys at OJ how they got so much powder they simply said they ordered it.
Government conspiracy? That's simply ridiculous. Following that are the hard headed cheap skates who do find powder in the LGS then whine and cry about the price being high and then don't buy it. No one to blame but yourself if your bench is empty.
My personal opinion is if a local store doesn't have it the owner isn't trying hard enough to get it.