So - I think sectional density is pretty straightforward except for one thing: the influence of velocity. Is there some formula for calculating some sort of penetration quotient?
Obviously, given two projectiles with the same mass and cross-section, the faster one will penetrate more.
But, what about an object of lesser sectional density moving faster? How does one calculate the overall interaction of sectional density and velocity?
When discussing our fabled interaction with grizzly bear we often talk about how heavier loads penetrate better, but what about much faster loads with the same cross section? There must be some point at which speed overcomes weight (assuming the bullet stays intact) and provides better penetration.
Is there a name we can put to this and how do we calculate it?
Obviously, given two projectiles with the same mass and cross-section, the faster one will penetrate more.
But, what about an object of lesser sectional density moving faster? How does one calculate the overall interaction of sectional density and velocity?
When discussing our fabled interaction with grizzly bear we often talk about how heavier loads penetrate better, but what about much faster loads with the same cross section? There must be some point at which speed overcomes weight (assuming the bullet stays intact) and provides better penetration.
Is there a name we can put to this and how do we calculate it?