I believe Alliant Powder, the maker of Bullseye and Unique, is allocating most of its production capacity to military contracts. That’s what I’ve heard. I’ve also heard that Alliant is suspending sales to consumers.
Alliant is just a brand name owned by Vista Outdoor. They sold Federal, which was part of Alliant, to a Czech company, including the Alliant trademark.
I’m not sure if this information is entirely accurate—it’s mostly what I’ve read on online forums. Many Alliant powders are out of stock, but BE-86 and a few others are still available. Maybe it’s just the remnants of a large stockpile?
There's no official announcement from Alliant so this is pretty much all speculation.
Powder valley posted this on Facebook awhile back:
FYI – we have just received the following message from Vista Outdoors (the parent company of Alliant Powders):
“Due to the worldwide shortage of nitrocellulose, the Vista Outdoor supply agreement for the sale of Alliant Powder canisters has been suspended for an unknown period. At this time, we have no timeline for the fulfillment and will be canceling outstanding Alliant orders in our system.
Representatives will provide updates and coordinate new orders based on availability.”
We have heard mixed messages from various powder suppliers about the availability of nitrocellulose, and therefore powder, over the past several months. This is one Manufacturer’s analysis of the situation. We are posting this so you can have all the information we have and draw whatever conclusions are right for you.