Well, to be honest about it all, the hollow-tip (different from a hollow point which is made to expand when hitting a target) is a bi-product of building an accurate and precise bullet. Sierra started doing it years ago building their matchking bullets because it creates a more uniform bullet. The tiny tip is where the wire holds the lead core and then the copper jacket is wrapped from the base up to the tip (this is backwards from normal bullet production). When the manufacturing process is done, the small wire is pulled free leaving a tiny tip. It "so happens" that the little tip creates a "bubble" or "cone" that does not HURT ballistics, but it does not aide either, its a slight misconception.
Now, since match ammo is all about accuracy, you use the best bullets, which are manufactured this way (sierra is not the only one that does this, and to be honest, I'm not positive if they were the first). And so that is why match ammo nearly always has a hollow tip.
MEL
