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BallistiComp™
The portable ballistics computer

Drag/Twist

Calculate drag and stability from bullet dimensions, weight, specific gravity and barrel twist.

Explanation of terms

Caliber (0.100 to 2.000 in) [0.224] [?]
 Nose Length - Calibers (1.200 to 5.000) [3.0] [?]
Meplat Diameter - Calibers (0.000 to 0.350) [0.000] [?]
 Ogive Radius - Calibers (1.000 to 1000.000) [18.0] [?]
Ogive Type [?]
 Boattail Length - Calibers (0.000 to 2.000) [1.000] [?]
Base Diameter - Calibers (0.000 to 1.000) [0.754] [?]
 Total Length - Calibers (2.500 to 10.000) [5.480] [?]
Rotating Band Diameter - Calibers (1.000 to 1.060) [1.000] [?]
 Bullet Weight (5.0 to 15000.0 gr) [55.0] [?]
Specific Gravity (2.00 to 20.00) [10.7] [?]
 Drag Function [?]
Barrel Twist (2.0 to 100.0 in) [7.0] [?]
 Muzzle Velocity Units [?]