Re: 7mm Rem Mag Brass???
RDM- I recently made a batch of 7 Rem brass out of Norma 308 Norma brass. I just have to trim off a few thousands from the neck, so it gives a bonus of a longer neck in my chamber, which is noticibly longer than "real" 7 Rem brass.
Don't know how long they will last, but since it's mostly an elk rifle, probably longer than me!