User Help

Step‑by‑step instructions to run the app like a pro. Screens may vary slightly between light/dark modes.

Chapters
  1. Calculator
  2. Weather
  3. Wind Hold Trainer
  4. Rifle Profiles
  5. Settings
  6. Save / PDF / Email
Tip: you can send us feedback at impactballistics@mail.com.

Calculator

Build your dope table using the TRY/TRUE flow. Start at your zero, then adjust TRUE values based on actual impacts — later rows update accordingly.

1. Pick Type (Centerfire or Rimfire) and Unit (MIL/MOA).
2. At the zero distance (100 for centerfire, 50 for rimfire), keep TRY at 0.0. If you dialed or held at zero, put that in TRUE.
3. At 200, 300, etc., enter your observed TRUE. TRY will update downstream. All values round to a single decimal.
4. Switch Yards/Meters if needed; distances update automatically.
Calculator TRY/TRUE table
Example: centerfire with calibrated MPH gun.

Weather

Pull local conditions and lock your heading so wind is computed relative to your target direction.

1. Tap Get Weather + Lock Heading. Allow location permissions.
2. Review Temp, Wind Speed, Wind From, Baro, RH, Elevation, Station and GPS.
3. Optional: toggle Include Spin Drift.
Weather with compass
Weather + compass heading lock.

Wind Hold Trainer

Drill wind calls on a reticle‑style dial. Use Hint to halve the difficulty or Reveal to check yourself.

Wind Hold Trainer
Reps build intuition.

Rifle Profiles

Save multiple rifles and ammo, including handloads. Select a combo to load it into the calculator instantly.

Rifle profiles list
Each rifle can store multiple ammo entries.

Settings

Switch dark mode, set default units, choose default rimfire box velocity, and set a default email for exports.

Settings
Dark mode and unit preferences.

Save / PDF / Email

1. Tap Save Prefs to persist your dope and unit choices.
2. Tap Generate PDF to create a clean dope card including current weather.
3. Tap Email Data to share (falls back to an app chooser if no email client is installed).