text: what do you think would happen if you shot someone with antimatter? what is antimatter? what are your thoughts? i read your question "what would happen if i shot someone with an antimatter bullet?"  it is right in that matter and antimatter annihilate each other on contact, and are in fact drawn magnetically to each other to mutual detonation.  if in fact the particles could last so long as to leave the gun fly through the air without detonation (we may assume some sort of magnetic container) the bullet becomes a small antimatter missile, or bomb, with a few grams, maybe ounces of antimatter.  when such a payload of antimatter explodes there is a large gamma radiation burst, one pound of which would be more powerful than the first atomic bombs, detonated over japan at the end of wwii.   the conclusion i draw is there would be a massive explosion that would devastate an area the size of a small city, from a single antimatter bullet.  makes one think.    - love your nieghbor as yourself