diff --git a/addons/scopes/functions/fnc_calculateZeroAngleCorrection.sqf b/addons/scopes/functions/fnc_calculateZeroAngleCorrection.sqf
index 5197a94e70..21ae70f9bd 100644
--- a/addons/scopes/functions/fnc_calculateZeroAngleCorrection.sqf
+++ b/addons/scopes/functions/fnc_calculateZeroAngleCorrection.sqf
@@ -57,6 +57,11 @@ private _trueZero = if (!_advancedBallistics) then {
         _initSpeed = _initSpeed + _barrelVelocityShift;
     };
 
+    if (missionNamespace getVariable [QEGVAR(advanced_ballistics,ammoTemperatureEnabled), false]) then {
+        private _ammoTemperatureVelocityShift = ([_ammoTempMuzzleVelocityShifts, GVAR(zeroReferenceTemperature)] call EFUNC(advanced_ballistics,calculateAmmoTemperatureVelocityShift));
+        _initSpeed = _initSpeed + _ammoTemperatureVelocityShift;
+    };
+
     _zeroAngle = "ace_advanced_ballistics" callExtension format ["zeroAngle:%1:%2:%3:%4:%5:%6:%7:%8:%9", _newZeroRange, _initSpeed, _boreHeight, GVAR(zeroReferenceTemperature), GVAR(zeroReferenceBarometricPressure), GVAR(zeroReferenceHumidity), _ballisticCoefficients select 0, _dragModel, _atmosphereModel];
     (parseNumber _zeroAngle)
 };
diff --git a/addons/scopes/functions/fnc_initModuleSettings.sqf b/addons/scopes/functions/fnc_initModuleSettings.sqf
index 92742afd14..f4aed23de5 100644
--- a/addons/scopes/functions/fnc_initModuleSettings.sqf
+++ b/addons/scopes/functions/fnc_initModuleSettings.sqf
@@ -32,6 +32,6 @@ if !(_activated) exitWith {};
 [_logic, QGVAR(deduceBarometricPressureFromTerrainAltitude), "deduceBarometricPressureFromTerrainAltitude"] call EFUNC(common,readSettingFromModule);
 
 GVAR(defaultZeroRange) = 0 max GVAR(defaultZeroRange) min 1000;
-GVAR(zeroReferenceTemperature) = -55 max GVAR(zeroReferenceTemperature) max 55;
+GVAR(zeroReferenceTemperature) = -55 max GVAR(zeroReferenceTemperature) min 55;
 GVAR(zeroReferenceBarometricPressure) = 0 max GVAR(zeroReferenceBarometricPressure) min 1013.25;
 GVAR(zeroReferenceHumidity) = 0 max GVAR(zeroReferenceHumidity) min 1.0;