Fire control / target card

Ballistic calculator: keep the map-to-gun handoff intact

Carry the Nest-to-target bearing and range through shell, charges, elevation, and the correct gun.

Applicable version
Full release; evidence checked August 20, 2026
Applicable platform
PC / Steam
Verification
Current sources cross-checked; no owned gameplay run

Draw the red line from the Iron Nest to the fixed target and copy its bearing and range. On the calculator, enter that bearing, choose the target icon if useful, select the intended shell, set the measured range, and choose a charge count the indicator accepts. Pull the calculate-elevation lever, then transfer the resulting card's bearing, charge count and elevation to the same gun you load and arm.

MapBearing + rangeMeasure Nest → target
In-game calculatorShell + chargesGenerate elevation card
GunBearing + elevationMatch the same cannon
  1. 01

    Measure the final firing line from the current Nest to the target.

  2. 02

    Enter bearing, target, and the shell you intend to load.

  3. 03

    Enter range and choose a charge count the in-game indicator accepts.

  4. 04

    Generate the card and transfer its bearing, charge count, and elevation.

  5. 05

    Match the card, loaded shell, gun side, and arming lever before firing.

  • Map line, calculator bearing, and turret bearing share the same Nest-to-target direction.
  • Loaded shell and powder count match the input.
  • The chosen gun's elevation matches its target card.
A plausible card misses badlyVerify Nest position, line direction, and target marker before changing the formula.
Charge choice is rejectedIncrease charges or use the current in-game indicator.
One gun hits and the other missesMatch card, loaded side, elevation control, and arming lever.

The official store confirms the measurement → calculator → charges/elevation loop at a capability level. Detailed control order comes from a current community guide.

Updated 2026-08-20.

Sources

Plotting Room

An independent, source-bounded field manual. Not affiliated with the IRON NEST developers, publisher, or Steam.