It must be a scoped rifle thing. I have 20 Norma cases that purchased in 7.62x53R. I had to expand the case mouths to accomidate the larger bullets. When shooting with Norma, and PPU cases I can not tell a difference at all. Though I admit with the irons I am the weak link in the chain.
I will say the Norma brass is of top tier quality without a single doubt.
No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.