Well, I sit corrected, and ~17 pounds doesn’t require weight training. OTOH, ~17 pounds is not very practical for most circumstances. Go to the gym and lift a 17-pound 3’-4’ iron bar to your shoulder, and what I mean will become fairly clear. It’s quite doable, but it’s clumsy and wearing - not good for quickness, control and endurance. I wonder how much more than that $390 a reasonably durable and reliable 9mm or .45 semi-auto pistol would cost (I really do not know).
Anyway, one absurdity I forgot for my list above, “hunting humans” is not legal, regardless of magazine size. It’s called “murder”.