NOBal Comp - iPhone v1.0

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Ballistic Coefficient: 
Projectile Weight:   grains
Initial Velocity:   feet/sec
Zero Range:   yards
Sight Height:   inches
Angle to Target:   degrees
Wind Velocity:   mph
Wind Angle:   degrees
Max Range:   yards
Step Size:   yards
Also, check out the downloadable
version for OS X - GEBC