Just one other note as far as NATO brass is concerned. The case wall especially at the web is slightly thicker on NATO spec so if you are loading near or at limits like your own version of +P or +P+ loads, you need to back off slightly when loading these cases. As a demonstration unit for my reloading classes I split a STD, +P, +P+, and NATO 9mm cases and pasted them to a board along with a variety of other cases and bullets. I know I've still got the board around somewhere but not sure what cases are still glued to it. I'll see about taking a pictuer and posting it.
Just something to keep in the back of your head. Also, if you don't sort by headstamp and load up a bunch you will get velocity variations with the different case volumes and the same load, OAL, bullet, crimp, etc.