Splitting a bullet on a knife or ax blade is no great trick. You only have to worry about windage, not elevation. It is a bit trickier to split the bullet evenly enough to break two plates, but still very possible for any reasonably good shot at short range.
The guy I told you about lighting matches was also one of the fastest people on the draw I have ever seen. His favorite trick was to fill a wooden match box (remember those?) with flour, tape it shut, sit it on the back of his hand, hold the hand out at shoulder height, drop the hand, draw, flip the matchbox out with the gun barrel, and blow it out of the air. He could do that the majority of the time, too. (Yours truly managed it once, I think.)
Jim
