If you can't find standard primers, take a look at your load data. With a slight decrease in powder you can often use magnums, especially in the larger calibers. They tend to be more available. If your loads are on the mild side, you likely won't need to adjust the powder load at all.

“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell

It's not over when you lose. It's over when you quit.