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ARMAG

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Ballistics calculator

Drop, drift, retained velocity and energy, integrated by the same RK4 solver the entry pages use. Your numbers go in; nothing here is sourced, so nothing here carries a status badge.

Muzzle energy 3,629 J2,676 ft·lbf
Elevation 1.208 mrad4.153 MOA
Zeroed at 100 m109.4 yd

Path relative to the line of sight (dashed), 0 to 600.0000000020078 m. The vertical scale is stretched to fill the box; read the table for the figures.

RangeDropWindVelocityEnergyTimeMach
0 m0 yd-40 mm-1.575 in0 mm0 in800 m/s2,625 fps3,629 J2,676 ft·lbf0.000 s2.35
60.00 m65.62 yd4.017 mm0.1582 in0 mm0 in762.9 m/s2,503 fps3,300 J2,434 ft·lbf0.077 s2.24
120.0 m131.2 yd-12.68 mm-0.4991 in0 mm0 in726.8 m/s2,385 fps2,995 J2,209 ft·lbf0.157 s2.14
180.0 m196.9 yd-96.27 mm-3.790 in0 mm0 in691.7 m/s2,269 fps2,713 J2,001 ft·lbf0.242 s2.03
240.0 m262.5 yd-253.7 mm-9.989 in0 mm0 in657.6 m/s2,158 fps2,452 J1,809 ft·lbf0.331 s1.93
300.0 m328.1 yd-492.9 mm-19.41 in0 mm0 in624.5 m/s2,049 fps2,212 J1,631 ft·lbf0.425 s1.84
360.0 m393.7 yd-822.7 mm-32.39 in0 mm0 in592.4 m/s1,944 fps1,990 J1,468 ft·lbf0.523 s1.74
420.0 m459.3 yd-1,253 mm-49.34 in0 mm0 in561.1 m/s1,841 fps1,785 J1,317 ft·lbf0.627 s1.65
480.0 m524.9 yd-1,796 mm-70.71 in0 mm0 in530.6 m/s1,741 fps1,596 J1,177 ft·lbf0.737 s1.56
540.0 m590.6 yd-2,464 mm-97.02 in0 mm0 in500.8 m/s1,643 fps1,422 J1,049 ft·lbf0.854 s1.47
600.0 m656.2 yd-3,274 mm-128.9 in0 mm0 in471.7 m/s1,548 fps1,262 J930.6 ft·lbf0.977 s1.39

These are your numbers, not ours: nothing here is sourced, so nothing carries a status badge. For figures that are, open a cartridge — its loads carry sourced velocities per barrel length, which is where a real muzzle velocity comes from.

What this assumes

  • Standard atmosphere at sea level: 15 °C, 101,325 Pa. Real air density changes the answer, and altitude changes it a great deal.
  • The ballistic coefficient is constant across the whole flight. Real coefficients vary with speed, most sharply through the transonic band.
  • Spin drift, the Coriolis effect and aerodynamic jump are not modelled. Each needs an input this site does not record — twist-derived stability, latitude, and the crosswind history at the muzzle.
  • The solver integrates in 20 mm steps and lands exactly on each requested range with one fractional step, so every reported point is a solution of the same equations rather than an interpolation between two of them.
  • A requested range the projectile never reaches is absent from the table rather than filled with a projection.

Every formula on this site, and where it came from →