Some places like Natchez Shooters Supply will still let you put in things on back order. Pistol bullets can still be ordered at Montana Gold and Precision Delta. Expect to have delays. You won't get things faster by waiting to place orders. I would consider getting in an order for Tula primers. They won't be getting used to fill government or police orders orders. I have used them and they seem to work well.
You can also put in back orders at Star Line Brass. Don't be surprised if it takes time to get your orders delivered.