I'm likely one of the very few that care, and hopefully they'll have some when the club gets an order together...
Graf's has some Tula Berdan primers listed finally, and I believe it will fit some 7.62x54 brass I've saved, and also some .303 British and 12ga brass.
Just for those that want to know...stock up because Berdan primers have a history of hanging around for a bit and then whoever brought them in quit because of low demand.
Sure, they're a bit troublesome sometimes, but not bad- and as brass is expensive, this is a great way to get around it.