When a bullet is made (by the swaging process, as most are) a copper cup and lead core are pushed into a forming die at very high pressures. The copper and lead squeeze together forming the ogive and bearing surface, but the tip gets little attention in the process. The bullet is usually popped out of the forming die by a little wire into the point (the meplat). This is the reason that match hollow points are even hollow points, that little wire pokes a hole into to the thin copper jacket upon removal.
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