Old School Ammo vs. Latest & Greatest?
Yes. Each has its place. I tend towards old school, with .45 acp being my round of choice (for those times when I can carry a full-sized pistol), but I sure do like the looks of some of the modern rounds (Speer Gold Dot, Corbon Powerball, etc).
I'm a lawyer, but I'm not your lawyer. If you need some honest-to-goodness legal advice, go buy some.