Well the objective of the tip is of course to be driven back into the bullet and help in the over all expansion. Also at long range, I am sure there is some effect to flight of a pointed bullet compared to a hollow point bullet. So in answer to your question, yes the pointy tip does something. It probably helps in the stabilization and flight pattern of the bullet at long distances, and also offers some assistance in the over all expansion of the bullet once it hits the intended target.