-> DA> I don't have the formulas for calculating terminal velocity in
-> DA> real life. Maybe Bill Frenchu will share them with us. Given the
-> DA> bullet's sectional density and ballistic coefficient, it should
-> DA> be able to be determined.
->
-> I don't know what the bullet's "density" would have to do with it,
Note I said "sectional density".  As you say, the mass and cross
sectional area come into play. Terminal velocity is proportional to
mass, and inversely proportion to cross sectional area.  Mass divided
by cross sectional area is, by standard ballistics definition, sectional
density. If you knew sectional density, you would not need to know mass
and cross sectional area, since it's the ratio that is used anyway.
-> but the mass, the drag coefficient, the air density, and the cross
In ballistics terminology, "drag coefficient" is said as 'ballistic
coefficient' or abbreviated as B.C. or BC.
-> sectional area would have a bearing on the terminal velocity.  In
-> addition, the drag coefficient and cross-sectional area would change
-> if the bullet was tumbling rather than falling in a fixed relative
-> position.  It sounds like a good fluid dynamics problem.  :)
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