They™ say, that if a bullet goes off, while it is not in a gun, that it is the brass that will go flying, not the projectile.
This raises an important question; if i were to install a bullet, lets say 700nitro for example, approximately 1/4 way into my well-lubricated butthole, and then detonate it remotely: would the casing reasonably gracefully exit my bum and leave the projectile behind as a little present, without killing me?