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JBM - Calculations - Modified Point Mass Trajectory

Calculate a modified point mass trajectory from bullet, velocity, firearm and atmospheric parameters.

Explanation of terms

Caliber (0.100 to 2.000 in) [0.308] [?]
 Nose Length - Calibers (1.200 to 5.500) [2.260] [?]
Meplat Diameter - Calibers (0.000 to 0.350) [0.250] [?]
 Ogive Radius - Calibers (1.000 to 1000.000) [7.00] [?]
Drag Function [?]
 Boattail Length - Calibers (0.000 to 2.000) [0.510] [?]
Base Diameter - Calibers (0.000 to 1.000) [0.7662] [?]
 Total Length - Calibers (2.500 to 10.000) [3.980] [?]
Rotating Band Diameter - Calibers (1.000 to 1.060) [1.000] [?]
 Core Depth - Calibers (0.100 to 2.000) [0.256] [?]
Jacket Thickness - Calibers (0.000 to 0.500) [0.091] [?]
 Jacket Length - Calibers (0.000 to 10.000) [3.980] [?]
Bullet Weight (10.00 to 15000.00 gr) [168.0] [?]
 Boundary Layer [?]
Jacket Specific Gravity (5.000 to 20.000) [8.9] [?]
 Core Specific Gravity (5.000 to 20.000) [11.5] [?]
Axial Moment of Inertia (0.000010 to 0.100000 lb•in²) [0.000247] [?]
 Transverse Moment of Inertia (0.00 to 0.10 lb•in²) [0.001838] [?]
Center of Gravity (0.100 to 10.000) [2.440] [?]
Muzzle Velocity (500.0 to 4500.0 ft/s) [2600.0] [?]
 Distance to Chronograph (0.0 to 100.0 ft) [0.0] [?]
Sight Height (-100.00 to 100.00 in) [1.5] [?]
 Sight Offset (-100.00 to 100.00 in) [0.0] [?]
Zero Height (-100.00 to 100.00 in) [0.0] [?]
 Zero Offset (-100.00 to 100.00 in) [0.0] [?]
Windage (-300.000 to 300.000 MOA) [0.0] [?]
 Elevation (-300.000 to 300.000 MOA) [0.0] [?]
Line Of Sight Angle (-90.0 to 90.0 deg) [0.0] [?]
 Cant Angle (-90.0 to 90.0 deg) [0.0] [?]
Direction (0.0 to 360.0 deg) [0.0] [?]
 Latitude (-90.0 to 90.0 deg) [0.0] [?]
Altitude (-4000.0 to 15000.0 ft) [0.0] [?]
 Vital Zone Radius (2.0 to 100.0 in) [5.0] [?]
Barrel Twist (2.0 to 100.0 in) [12.0] [?]
 Twist Direction [?]
Wind Speed (0.0 to 100.0 mph) [10.0] [?]
 Wind Angle (-90.0 to 90.0 deg) [90.0] [?]
Minimum Range (0 to 3999) [0] [?]
 Maximum Range (1 to 4000) [1000] [?]
Range Increment (1 to 4000) [100] [?]
 Zero Range (1 to 4000) [100] [?]
Temperature (-40.0 to 140.0 °F) [59.0] [?]
 Pressure (15.00 to 40.00 in Hg) [29.92] [?]
Humidity (0.0 to 100.0 %) [0.0] [?]
Column 1 Units (0.05 to 10.00 MOA) [1.00] [?]
 Column 2 Units (0.05 to 10.00 MOA) [1.00] [?]
Ranges in Meters [?] Target Relative Drops [?]
Elevation Correction for Zero Range [?] Windage Correction for Zero Range [?]
Std. Atmosphere at Altitude [?] Mark Sound Barrier Crossing [?]
Include Extra Rows [?]
Include Coriolis Effects [?] Include Aerodynamic Jump [?]
Include Magnus Effects [?] Include Coefficients [?]
Calculate Inertia [?] Calculate Center of Gravity [?]
SPINNER CMα [?] SPINNER Clα [?]
SPINNER Clp [?] Geometry Correction [?]
Point Mass Trajectory [?]
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