If a 7.5 gram copper-jacketed lead bullet (say, a 9x19mm Parabellum) was travelling at 360 m/s, how much power would it take to diamagnetically stop it in the space of one meter?
This question comes from discussion about this questionthis question on the SF&F SE, about the scene in the X-Men movie where Magneto stops a bullet before it hits someone in the face. I'm aware that a strong enough magnet to cause this effect is going to have a whole heap of other side effects. I'm mainly interested in the ideal case of simply stopping a bullet, rather than the complication of doing it within an inch of someone's face.