If a 7.5 gram copper-jacketed lead bullet (say, a [9x19mm Parabellum][1]) 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 question][2] 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. [1]: http://en.wikipedia.org/wiki/9%C3%9719mm_Parabellum [2]: http://scifi.stackexchange.com/q/57207/