diff --git a/addons/advanced_ballistics/script_component.hpp b/addons/advanced_ballistics/script_component.hpp
index 48344f8ca3..dafb4150e1 100644
--- a/addons/advanced_ballistics/script_component.hpp
+++ b/addons/advanced_ballistics/script_component.hpp
@@ -16,7 +16,6 @@
 
 #include "\z\ace\addons\main\script_macros.hpp"
 
-#define GRAVITY 9.80665
 #define ABSOLUTE_ZERO_IN_CELSIUS -273.15
 #define KELVIN(t) (t - ABSOLUTE_ZERO_IN_CELSIUS)
 #define CELSIUS(t) (t + ABSOLUTE_ZERO_IN_CELSIUS)
diff --git a/addons/atragmx/functions/fnc_calculate_solution.sqf b/addons/atragmx/functions/fnc_calculate_solution.sqf
index a37156de28..a7928d1ef0 100644
--- a/addons/atragmx/functions/fnc_calculate_solution.sqf
+++ b/addons/atragmx/functions/fnc_calculate_solution.sqf
@@ -58,7 +58,7 @@ private _bulletPos = [0, 0, 0];
 private _bulletVelocity = [0, 0, 0];
 private _bulletAccel = [0, 0, 0];
 private _bulletSpeed = 0;
-private _gravity = [0, sin(_scopeBaseAngle + _inclinationAngle) * -9.80665, cos(_scopeBaseAngle + _inclinationAngle) * -9.80665];
+private _gravity = [0, sin(_scopeBaseAngle + _inclinationAngle) * -GRAVITY, cos(_scopeBaseAngle + _inclinationAngle) * -GRAVITY];
 private _deltaT = 1 / _simSteps;
 
 private _elevation = 0;
@@ -95,7 +95,7 @@ if (missionNamespace getVariable [QEGVAR(advanced_ballistics,enabled), false]) t
 
 private _eoetvoesMultiplier = 0;
 if (missionNamespace getVariable [QEGVAR(advanced_ballistics,enabled), false]) then {
-    _eoetvoesMultiplier = 2 * (0.0000729 * _muzzleVelocity / -9.80665) * cos(_latitude) * sin(_directionOfFire);
+    _eoetvoesMultiplier = 2 * (0.0000729 * _muzzleVelocity / -GRAVITY) * cos(_latitude) * sin(_directionOfFire);
 };
 
 _bulletPos set [0, 0];
diff --git a/addons/main/script_macros.hpp b/addons/main/script_macros.hpp
index 06b9e3ab99..145134d388 100644
--- a/addons/main/script_macros.hpp
+++ b/addons/main/script_macros.hpp
@@ -109,6 +109,8 @@
    #define TRACE_10(MESSAGE,A,B,C,D,E,F,G,H,I,J) /* disabled */
 #endif
 
+#define GRAVITY 9.8066
+
 // Angular unit conversion
 #define MRAD_TO_MOA(d) ((d) * 3.43774677) // Conversion factor: 54 / (5 * PI)
 #define MOA_TO_MRAD(d) ((d) * 0.29088821) // Conversion factor: (5 * PI) / 54
diff --git a/addons/rangecard/functions/fnc_calculateRangeCard.sqf b/addons/rangecard/functions/fnc_calculateRangeCard.sqf
index 694d234caf..5bb12e220a 100644
--- a/addons/rangecard/functions/fnc_calculateRangeCard.sqf
+++ b/addons/rangecard/functions/fnc_calculateRangeCard.sqf
@@ -46,7 +46,7 @@ private _bulletPos = [0, 0, 0];
 private _bulletVelocity = [0, 0, 0];
 private _bulletAccel = [0, 0, 0];
 private _bulletSpeed = 0;
-private _gravity = [0, sin(_scopeBaseAngle) * -9.80665, cos(_scopeBaseAngle) * -9.80665];
+private _gravity = [0, sin(_scopeBaseAngle) * -GRAVITY, cos(_scopeBaseAngle) * -GRAVITY];
 private _deltaT = 1 / _simSteps;
 private _speedOfSound = 0;
 if (missionNamespace getVariable [QEGVAR(advanced_ballistics,enabled), false]) then {
diff --git a/addons/rangecard/functions/script_component.hpp b/addons/rangecard/functions/script_component.hpp
index fdc4a3d486..d4a493206b 100644
--- a/addons/rangecard/functions/script_component.hpp
+++ b/addons/rangecard/functions/script_component.hpp
@@ -1 +1 @@
-#include "\z\ace\addons\rangecard\script_component.hpp"
\ No newline at end of file
+#include "\z\ace\addons\rangecard\script_component.hpp"
diff --git a/extensions/advanced_ballistics/AdvancedBallistics.cpp b/extensions/advanced_ballistics/AdvancedBallistics.cpp
index 1d4ce2d6e9..5760ae797d 100644
--- a/extensions/advanced_ballistics/AdvancedBallistics.cpp
+++ b/extensions/advanced_ballistics/AdvancedBallistics.cpp
@@ -10,7 +10,7 @@
 
 #define DT_ZERO 0.02
 #define DT_SIMULATION 0.005
-#define GRAVITY 9.80665f
+#define GRAVITY 9.8066f
 #define DEGREES(X) (X * 180 / M_PI)
 #define ABSOLUTE_ZERO_IN_CELSIUS -273.15f
 #define KELVIN(t) (t - ABSOLUTE_ZERO_IN_CELSIUS)
diff --git a/extensions/fcs/ace_fcs.cpp b/extensions/fcs/ace_fcs.cpp
index c43b1c227f..8ab57a1c77 100644
--- a/extensions/fcs/ace_fcs.cpp
+++ b/extensions/fcs/ace_fcs.cpp
@@ -61,7 +61,7 @@ double traceBullet(double initSpeed, double airFriction, double angle, double an
         posX += velX * simulationStep * 0.5;
         posY += velY * simulationStep * 0.5;
         velX += simulationStep * (velX * velMag * airFriction);
-        velY += simulationStep * (velY * velMag * airFriction - 9.80665);
+        velY += simulationStep * (velY * velMag * airFriction - 9.8066);
         posX += velX * simulationStep * 0.5;
         posY += velY * simulationStep * 0.5;
         if (posX >= posTargetX) { break; }