That's for sure. As a test, try and grab a handful of R-P head stamped 10mm brass and load it with a Nosler 150gr JHP and tell me your rate of success.
I'll bet it's poor and unacceptable.
Attention Brass rats and other reloaders: I really need .327 Federal Magnum brass, no lot size too small. Tell me what caliber you need and I'll see what I have to swap. PM me and we'll discuss.