Originally Posted by
Darth Lefty
You just invented "sectional density," which has units of pressure, similar to wing loading for aircraft. It's related to "ballistic coefficient" which has an additional fudge factor for the projectile shape. Mathematically it's a little strange and has a messy history because it needed to be made into lookup tables for artillery use before computers
Ooh, you're so sexy when you talk technical.
And thanks for using terms in a new way for me. I do follow what you said.