PPU - where’s it gone?

I used to shoot PPU ammo out of my surplus rifles. 7.5 French, 8mm Mauser, .303 Brit etc….

I find PPU to be good ammo - and non corrosive. I don’t reload and I don’t chance buying 100 year old surplus stuff.

I can’t find any PPU online or in stores. If I do, it’s gunbroker prices or worse. I’m kinda tired of hunting for it to be honest… does anyone know if PPU are even still making these kind of calibers? I understand they do limited runs due to demand but if anything demand for surplus is growing and it seems it’s totally dried up.