Further info on the GI 9mm.
This past week I was fiddling at my loading bench, and picked up a handful of WCC 9mm NATO from 2011. I used a knife to cut out the primer crimp in a few and used old primers to reprime them. They went very easily. A Lee chamfer tool would probably be easier. I do have the RCBS PPS but it is not set up.
However, just for kicks, I ran a few that still had the crimp in them, again using spent primers. I couldn't really tell any difference between seating those and seating the ones with the crimp cut out. Both went in easily on my Lee Classic Turret.
So, before you discard them or buy a crimp remover, you may want to try a few.
Education teaches you the rules, experience teaches you the exceptions (Plagiarized from Claude Clay)