I managed to find some powder online and thought I'd share links in case others are having a hard time finding stuff. I mainly load for 30-cal rifle.
Natchez SS - http://www.natchezss.com/
- they had IMR 4064 last night. I have usually had good service from Natchez, though they're backed up like everyone else and delivery is a bit slow. Still, they're pretty well known.
Kentucky Gun Company - http://www.kygunco.com/
- they did cancel an earlier order I made based on their "up to the minute" inventory tracking, so I don't know if you can trust their site.
Rifle Magazine - http://www.riflemagazine.com
- never dealt with them before before and I didn't see anything marked "out of stock" on their site, so I'm suspicious. But I put an order in. You may wish to call and verify unless you want to have a backorder sitting out there.
I have what I need...hope this helps someone else.