Documentation
On this page
LoadOut keeps one set of numbers and shows them in the units you choose. Pick a system, override any single category, and choose your angular unit separately, because a metric shooter with a MOA turret is not a contradiction.
Choosing units
- Open Settings › General. The Units row switches the whole app between Imperial and Metric.
- Override a category. Under the Units row, each of the eleven categories can be set on its own: range, muzzle velocity, bullet weight, bullet diameter, drop and sight height, angle, temperature, pressure, altitude, wind velocity, and energy. A metric shooter who thinks of velocity in feet per second sets just that one.
- Choose your angular unit. The Angle row is separate from the system: MOA or MRAD, whichever your turrets and reticle use. Every hold, every DOPE table, every Target Card, and every spoken solution follows it.
Your choice applies everywhere at once: forms, the solver, Range Day, exports, and the watch. Change it any time; nothing is recalculated because nothing was stored in display units.
The unit table
| Quantity | Imperial | Metric | Used for |
|---|---|---|---|
| Range | yd | m | Target distance, zero range, DOPE rows, ranges on the watch |
| Muzzle velocity | fps | m/s | Muzzle velocity, chronograph strings, velocity at range |
| Bullet weight | gr | g | Bullet weight; powder charges are always in grains, as load data publishes them |
| Drop & sight height | in | cm | Bullet length, COAL and CBTO, sight height, shoulder bump, neck wall, barrel length |
| Bullet diameter | in | mm | Bullet diameter |
| Angle | MRAD (mil) | MRAD (mil) | Holds, come-ups, group size, reticle subtensions |
| Temperature | °F | °C | Environment, powder reference temperature |
| Pressure | inHg | hPa | The pressure at your position, not corrected to sea level |
| Altitude | ft | m | Station altitude, density altitude |
| Wind velocity | mph | m/s | Wind calls, meter readings; km/h is a third option |
| Energy | ft-lbs | J | Energy at range, energy thresholds in Full Analytics |
MOA and mil
A minute of angle is 1/60 of a degree: 1.047 in at 100 yd, which most shooters round to an inch. A milliradian is 1/1000 of a radian: 3.6 in at 100 yd, or 10 cm at 100 m. One mil is 3.438 MOA. Neither is more accurate than the other; what matters is that your turrets, your reticle, and your app agree.
| At 100 yd | MOA | Mil |
|---|---|---|
| One unit subtends | 1.047 in | 3.6 in |
| Typical click | 1/4 MOA (0.26 in) | 0.1 mil (0.36 in) |
| Ten clicks | 2.5 MOA (2.6 in) | 1.0 mil (3.6 in) |
| Convert | MOA × 0.2909 = mil | mil × 3.438 = MOA |
The MOA ↔ MIL Converter under Tools & Resources converts between the two and to a size at any distance, and the Reference tab there keeps the subtension table for the ranges you shoot.
How values are stored
Every number is stored once, in a canonical unit, and converted for display. Type a muzzle velocity in metres per second and a shooter opening the same profile in feet per second sees the same speed. Changing the Units setting therefore never edits a record; it changes the labels and the arithmetic in front of them. Exports carry the stored values with their units named, so a spreadsheet never has to guess.
Field conventions
What a blank field means
A blank ballistics field is never quietly filled in. Bullet and rifle fields with no value stop the solution and are named on the card under it. Environment fields with no value fall back to the ICAO standard atmosphere, and the solution says "Using ICAO standard atmosphere" for as long as that is true. Four starting defaults are the deliberate exceptions, each disclosed on screen until you change it: a 100 yd zero range, a 2.0 in sight height, a right-hand twist direction, and a 1.0 MOA shooter capability on the hit-probability surfaces.