Home Forums Hunting & Shooting Express Rifles and Big Bores Only The great 458 Winchester. Everyone should own one at least once

So Art's Penetration Index basically boils down to Momentum applied per unit of cross-sectional area of bullet,
with the depth of penetration arising from that being proportional to sectional density of the bullet.
Sectional density drives penetration for any given "Momentum-Squared" value.
This basis on momentum occurs even though the calculation is based on a Kinetic Energy value.
Seems this would be good only for nondeforming solid bullets stable enough to stay on course.

Art's Shock Power Index reflects the amount of KE applied to the bullet's CSA imprint on the target at impact.
Basically how hard it smacks the surface at impact.
So characteristics of both the bullet and the impact medium come into play regarding wounding effectiveness.
Seems like it would be applicable for comparing only bullets of the same type soft point construction.

A Unified Field Theory of Lethality Indices is needed to index for a combined penetration and smackdown potential for any bullet.

I am going to fiddle with BS Index, GW Index, and BS2 Index as well as Sir Bob's Latest TE adventures.

The "BS2" Index acronym stands for Bullet Swag Too/Also/2.