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Come and take it.
April 21, 2010, 12:21 PM
1) Will a heavier bullet resist turbelance better than a lighter bullet during trans-sonic flight?

2) 2 bullets of different calibers/ both bullets have the same ballistic coefficient/ both bullets leave the barrel at the same velocity/ both are subjected to the same crosswind

Will a the heavier bullets inertia resist wind deflection more... or is the inertia factored in for the ballistic coefficient?

Also does ballistic coefficient take into consideration that the crosswind pushes against the bullets profile and not its cross section?

Jimro
April 21, 2010, 01:39 PM
1. All else being equal the heavier bullet will resist external forces more than a lighter bullet. Mass is resistance to force.

2. Two bullets with the same BC and velocity but different mass will react the same according to the ballistics calculator I used to compare a .224 77gr SMK with a .308 165 gr SGK at 2850 fps. Ballistic Coefficient is just a measurment of relative aerodynamics. When the measurement is the same then the behavior SHOULD be the same.

Jimro

Come and take it.
April 21, 2010, 04:09 PM
so the ballistic coefficient incorporates the inertia?

Jimro
April 21, 2010, 05:09 PM
http://en.wikipedia.org/wiki/Ballistic_coefficient