--- layout: wiki title: ATragMX component: atragmx description: Handheld ballistics calculator. group: feature category: equipment parent: wiki mod: ace version: major: 3 minor: 0 patch: 0 --- ## 1. Overview ### 1.1 AtragMx from Horus Vision Horus ATragMX software considers atmospheric conditions, gun data, ammunition, range, speed and muzzle velocity to calculate precise aiming solutions with "come-up" results – and even accounts for Coriolis and spin drift effects. ATragMX, loaded on a handheld computer made by TDS Recon, is easy to use and lightning-fast. The Recon meets the rigorous MIL-STD-810F military standard for drops, vibration, humidity, altitude and extreme temperatures. ## 2. Requirement - [Advanced Ballistics module enabled]({{ site.baseurl }}/wiki/feature/advanced-ballistics.html) ## 3. Usage ### 3.1 Opening the AtragMx #### 3.1.1 Interaction Menu - Open the self interaction menu Ctrl + ⊞ Win - Select `Equipment` - Select `Open AtragMx` #### 3.1.2 Custom key - `OPTIONS` / `CONTROLS` / `CONFIGURE ADDONS` / `ACE3 Equipment` ### 3.2 Example with M14 and default 7.62mm 20Rnd Mag **Start of the mission:** - Open the [Range Card]({{ site.baseurl }}/wiki/feature/rangecard.html) and check the cartridge, the zeroed distance, the rifle twist, the muzzle velocity at 15°C and the bore height. Range card - Open the AtragMx and the `Atmsphr` column, select `Default` and `Done`. [[Manual]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=15) - `Open Gun` the 7.62x51mm M80 in the `GunList`. [[Manual]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=25) - Select `E` (English unit) at the top right. [[Manual]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=10) - Open the `Gun` column, check and update the `Bore`, the `Rifle Twist` and `Done`. - Select `M` (Metric unit) at the top right. - Open the `Gun` column, check and update the `Muzzle Velocity`, the `Zero Range` and `Done`. - *The Muzzle Velocity Table will be automatically updated.* [[Manual]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=22) - *(Must be edited manually for specific cartridges according with the range card)* - Optionally, `Save Gun` and `Done` in the `GunList`. **In position:** - Update the `Atmsphr` column with the [Kestrel 4500]({{ site.baseurl }}/wiki/feature/kestrel4500.html) and `Done`. - *Check the new `Muzzle Velocity` in the `Gun` column.* - Update the `Target` column (the [wind arrow]({{ site.baseurl }}/wiki/feature/weather.html) will also help). [[1]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=16) [[2]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=30) [[3]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=32) [[4]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=33) - *The latitude for all common maps can be found in the [ACE3 Github]({{ site.ace.githubUrl }}/blob/master/addons/common/functions/fnc_getMapData.sqf).* - Apply the vertical and horizontal elevations on the [scope]({{ site.baseurl }}/wiki/feature/scopes.html). - Control the breath and press. ### 3.3 Example with Truing tool - Open the `Truing Drop` in the `Options` menu. [[Manual]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=23) - Add the actual `Target Range` in the `SUPER` column and `Calc`. - Add the same `Target Range` in the `SUB` column and `Calc`. - Apply the actual scope elevation in the `Drop` field and `Calc`. - `Accept` the new `C1`, `Gun` column and `Elev` are updated. - *The Drag Coefficient Table will be automatically updated.* [[Manual]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=22) - Optionally, `Save Gun` and `Done` in the `GunList`. Calculation - If a new `Target Range` is applied in the `Target` column, the ballistic coefficient `C1` and the elevation `Elev` will be automatically recalculated. Interpolation Extrapolation ### 3.4 Example with overwritten zero distance - The `Default zero distance` can be overwritten with the [Scopes Options]({{ site.baseurl }}/wiki/feature/scopes.html), the [Scopes Framework]({{ site.baseurl }}/wiki/framework/scopes-framework.html) or the [CBA Settings System](https://github.com/CBATeam/CBA_A3/wiki/CBA-Settings-System). - In this case, the [Range Card]({{ site.baseurl }}/wiki/feature/rangecard.html) will be automatically updated, NOT the AtragMx. - Open the AtragMx and the `Atmsphr` column, select `Default` and `Done`. [[Manual]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=15) - Open the `Gun` column, check and update the `Zero Range` and `Done`. Zero distance 300m ### 3.5 Example with `Add New Gun` in `GunList` - Open the [Range Card]({{ site.baseurl }}/wiki/feature/rangecard.html) and check the bullet diameter, the bullet weight, the **(bullet Class Name)** and the muzzle velocities. - Open the AtragMx and the `Atmsphr` column, select `Default` and `Done`. [[Manual]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=15) - Select `Add New Gun` in the `GunList`. [[Manual]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=25) - Add a `New Gun Name` and `Open Gun`. - Select `E` (English unit) at the top right. [[Manual]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=10) - Open the `Gun` column, check and update the `Bullet Weight (grains)`, the `Bullet Diam (inches)` and `Done`. - Select `M` (Metric unit) at the top right. - Open the `Muz Vel Table` in the `Options` menu or click on `MV` in the `Gun` column. - Edit manually the `Muzzle Velocity Table` according with the [Range Card]({{ site.baseurl }}/wiki/feature/rangecard.html) and `Done`. [[Manual]](https://horusvision.com/download/manual_Horus_ATrag-v385.pdf#page=22) - The `C1 coefficient` of the bullet can be found with the Eden Editor `Config Viewer`: > configfile >> "CfgAmmo" >> "**bullet Class Name**" >> "ACE_ballisticCoefficients" > configfile >> "CfgAmmo" >> "**bullet Class Name**" >> "ACE_dragModel" - *The AtragMx accepts only **G1 ballistic coefficient**.* - *G7 ballistic coefficient can be converted, for example, with the online [JBM Ballistics Calculators](http://www.jbmballistics.com/cgi-bin/jbmgf-5.1.cgi)*. - Optionally, `Save Gun` and `Done` in the `GunList`. > Note: The ballistic coefficient can be calculated by using the [360 Degree Training Course mission](https://forums.bistudio.com/forums/topic/171228-sp-360-degree-training-course/) as a chronograph at different distances and [JBM Ballistics Calculators](http://www.jbmballistics.com/cgi-bin/jbmbcv-5.1.cgi) for example, an another ballistic software at your own convenience, or the [AtragMx Truing Tool](#33-example-with-truing-tool). > Example direct conversion with .408 Cheytac 305 grains G7 BC 0.279 at 2000 meters 15°C: Conversion G7/G1 BC ### 3.6 Adding ATragMX Presets - [ATragMX Framework]({{ site.baseurl }}/wiki/framework/atragmx.html) ### 3.7 Reseting the AtragMx `GunList` - Open the Eden Editor and the Extended Debug Console (Ctrl+D). - Execute `call ace_atragmx_fnc_clear_user_data` (LOCAL EXEC). - The original ACE3 `GunList` will be restored (all `Add New Gun` entries deleted). ## 4. Official References - [Official Manual]({{ site.ace.githubUrl }}/blob/master/extras/manual_Horus_ATrag-v385.pdf)