Topics

Where applicable, variables and references have been listed at the end of each page.

• Ballistic Coefficients
  BCs and different drag functions? What is the best one to use?
• Cant
  Derivations of the equations used in corrections to the elevation and azimuth of a canted firarem.
• CD and KD
  Derivations of the equations used in the point mass trajectory calculations. It includes equations for CD, BC and KD.
• Crosswind
  Derivations of the classic crosswind deflection formula.
• Drag Functions
  Discussion about drag functions and their relations to ballistic coefficients.
• Drop Units In Calculations
  Topic covering the use of drop, windage and lead units in the JBM calculators.
• Elevation
  A method for calculating trajectories for other than a zeroed range (or for changes in shooting conditions) using the constant elevation angle.
• Energy
  A discussion of potential and kinetic energy with a worked example.
• Integration
  Changing variables of integration to make the trajectory equation more convenient to integrate.
• Recoil
  Equation for calculating free recoil
• Sectional Density
  Equation for calculating sectional density and its relation to the BC, CD and form factor.
• Runge Kutta Integration
  Equations for numerical integration using Runge Kutta methods.