By increasing the density of the material in the bullet, we will be able to build a heavier bullet on what is now a lighter profile. For example a bullet with the same profile as a current 140 grain 7mm bullet with a new core material that allows 30% increase in density will allow us to make a 182 gr bullet on the same profile as the 140 grain bullet. That is a significant increase in the Sectional Density of the bullet, or weight per unit of frontal area. The SD rises from .248 to .324. A bullet with a sectional density of .324 is considered to be a serious killing machine. As long as the cartridge can drive it at reasonable velocities, the high SD bullet is much more effective at penetrating to and through vital organs, bone, etc. thus the comment that anything on 4 legs would be in serious trouble if we are effective in putting this bullet together.

There is another point to this discussion that involves Ballistic Coefficient. If you have an interest we can address that one too.