Originally Posted by Mule Deer
SuperCub,

A plastic tip does two things: increase ballistic coefficient, which means higher retained velocity and energy downrange, and promote expansion, because underneath the plastic tip is a HUGE hollow-point.

I would never have known this if it hadn't been pointed out to me by Shrapnel.

So is the hollow-point there only to hold the stem on the plastic tip or is it bigger than that?