I got some Wolf Russian primers form somewhere in Kansas last time. I can’t remember where.
If it was from the internet, it was probably Powder Valley. I’ve bought from them, components are hit and miss.
A good reloading manual (or two or three) is critical to handloading, especially these days when your ‘go to’ powder and or component isn’t available. But always, always follow the manual’s recommendations on minimum and maximum loadings and component usage.