I'll get a couple of things out of the way first. I came across this from another website. I also hope I'm posting this in the correct area. If not please move the post. The gun was not malfunctioning, cock and lock. After the accidental discharge the spent casing was still in the chamber. http://www.simplyphysics.com/flying_objects/GuninMagnet.html I fell a good moral to this story is that guns and MRI's don't mix.