Algorithm playground Beta

Try the solver behind Zephyr.

The same physics that runs on Zephyr, sitting on a plain web form. Type in your load, your atmosphere, your shooting angle and twist rate, and the full trajectory table updates as you go: drop, velocity, time of flight, Coriolis, spin drift, all of it. Flip individual effects on and off and watch exactly how each one bends the curve.

The math runs on our server; only your inputs and the results travel between you and us.

Model & units

Drag model

Display units

MOA MIL

Effects

Coriolis

Latitude (°)

Azimuth (°)

Spin drift

Aerodynamic jump

Mach scaling

In-flight atmosphere

GS-bound spin drift

Right-hand twist

RK4 integrator (slower, tighter at long range)

Ballistics

Muzzle velocity (fps)

Sight height (in)

Zero range (yd)

Shooting angle (°)

Atmosphere & wind

Temperature (°F)

Pressure (inHg)

Humidity (0–1)

Wind speed (mph)

Wind direction (°)

Bullet & barrel

Caliber (in)

Bullet length (in)

Twist rate (1:x)

Bullet weight (gr)

Form factor

Range

Target range (yd)

Target solution

Range—

Elevation—

Windage—

Drop—

Wind—

Velocity—

Energy—

TOF—

Spin drift —

Coriolis (vert / horiz) — —

Drop

Velocity

Energy

Time of flight

Trajectory table

Range (yd)	Elev (MOA)	Wind (MOA)	Drop (in)	Vel (fps)	Energy (ft-lb)	TOF (s)	Spin (in)	Cor V (in)	Cor H (in)