IRON NEST Manual Aiming

You can fire accurately when the ballistic computer is damaged. Two independent Steam Community guides for the full-release period describe the same linear relationship: elevation in degrees = target distance in metres × 0.012 ÷ powder charges. The equivalent form is distance in kilometres × 12 ÷ charges. Treat this as a community-corroborated public-1.0 method rather than an official developer formula, and test the first result against a target whose position is already reliable.

Calculate a manual firing solution

First solve the map problem. Plot the target, identify the Nest’s real firing origin, and use the red firing-solution pencil to measure range and bearing. Manual elevation only replaces the computer’s elevation output; it does not find the target and it does not correct a bad bearing.

Choose a charge count whose approximate range ceiling is beyond the measured distance. Multiply the distance in kilometres by 12, then divide by the number of charges. Set that elevation on the loaded gun, set the measured bearing, confirm the correct barrel is armed, and fire only after checking that the actual powder count matches the calculation.

For example, a target at 7.5 km with three charges gives 7.5 × 12 ÷ 3 = 30°. A target at 18 km with five charges gives 18 × 12 ÷ 5 = 43.2°. These examples demonstrate the arithmetic; they are not mission coordinates.

Pick the charge count before doing the arithmetic

The community model places the gun’s practical 60-degree end of the linear scale at roughly 5 km per charge. More charges increase the range covered by each degree, so they lower the elevation required for the same target. They also change the projectile flight profile, which matters when a target moves or a timed impact is required.

These are calculated reference values from the community formula, not official shell-by-shell limits. If the live calculator rejects a combination or a controlled shot disagrees, use the current build’s result and record the shell, charges, range, and patch before updating your notes.

Keep the Nest origin and bearing separate

The formula assumes the distance is correct. High Command can place the Nest anywhere inside the reported grid square, so measuring from the centre of that square can produce a noticeable miss downrange. Use a mission-provided Position Report when available. Another community method is to fire at a nearby confirmed target, use the crater and reverse bearing to infer the true origin, then mark that origin with the white pencil. That procedure costs ammunition and should not be used when collateral or medal conditions make a calibration shot unsafe.

Set bearing from the same origin used for range. If the impact is left or right while the distance looks correct, revisit the map line or turret bearing. Changing elevation to fix a lateral error corrupts an otherwise useful manual table.

Recover when the computer breaks during a mission

Do not restart automatically. Read the current order and keep any firing card already produced for a still-valid target. For a new target, measure range and bearing, choose charges, calculate elevation, and prepare one gun first. A single observed impact protects the second gun and gives you a correction point.

Before firing, compare six fields: target, measured origin, bearing, shell, actual charges, and armed barrel. A damaged calculator does not change the loading or arming rules. If you accidentally loaded a different powder count, recalculate with that count instead of using the old angle.

Correct the shot by error type

When an impact appears on the map, classify it before touching a control. A left/right miss points to target location, origin, or bearing. A short/long miss on the correct line points to distance, charge count, elevation, or an invalid assumption about the formula. A centred impact with no desired result points to shell effect or target classification.

Change one field at a time. For a small range error, keep the same shell and powder count, record the old elevation and impact, and make a measured elevation adjustment. Do not fit a new formula from one miss: the target might have moved, the wrong gun may have fired, or the map line may have started from the wrong point.

Static targets and moving targets need different plans

The linear elevation formula solves where a static target is now. A moving ship or convoy must be engaged at the point it will reach after preparation and projectile flight time. Plot the movement line, calculate elapsed travel, add your realistic preparation time, and then include the flight-time indication shown after the gun reaches elevation. Recalculate the future point if loading takes longer than planned.

Do not copy a lead distance from another run. Start time, speed, direction, current time, Nest position, charge count, and projectile flight time can all differ. Use Shot Corrections when the first impact provides a usable observation.

Manual aiming questions

Does the formula work with distance in metres or kilometres?

Use metres × 0.012 ÷ charges, or the equivalent kilometres × 12 ÷ charges. Mixing the two forms creates a thousand-fold error.

Should I always use six charges?

Six charges make the mental conversion simple—about 500 metres per degree—but they are not automatically best. The mission can care about resources, flight time, loading work, or medal conditions. Use a charge count that covers the range and fits the operation.

Is this an official formula?

No. It is independently reported by multiple current Steam guides and matches their calculator examples. It remains community-corroborated until verified directly in the current public build or documented by the developer.

What should I record after a patch?

Record patch title/date, mission, Nest origin method, target range, shell, charges, calculated elevation, actual elevation, barrel, and impact. A small set of repeatable control shots is more useful than a large table with unknown provenance.

Sources

• How to shoot without elevation calculating computer? — current community formula and examples.
• Iron Nest — Manual Aiming & Ballistics Guide — independent charge/range presentation of the same model.
• Your own targeting computer — additional current community corroboration.
• Developer FAQ — official scope and gameplay-oriented ballistics boundary.
• Official patch announcements