Have you tried powder valley? I ended up with small pistol magnum primers because they had no small pistol. I will reduce the load. Last time i used WOLF primers... have a strong firing pin spring!
I use a dillon 650 and NO federal brass is no good unless you use small pistol primers. I have had no issures with winchester primers and small issue with wolf, bit i will avoid russian stuff as much as possible.
personally whenever i feel resistance seating priomers i check and its federal or it WNT. I just toss them.
heard anything about more shortages?