diff --git a/addons/advanced_ballistics/functions/fnc_handleFired.sqf b/addons/advanced_ballistics/functions/fnc_handleFired.sqf
index fcfc9a2c7aa..7b59e3229e6 100644
--- a/addons/advanced_ballistics/functions/fnc_handleFired.sqf
+++ b/addons/advanced_ballistics/functions/fnc_handleFired.sqf
@@ -60,7 +60,7 @@ if (_abort) exitWith {};
 
 // Get Weapon and Ammo Configurations
 (_ammo call FUNC(readAmmoDataFromConfig)) params ["_airFriction", "_caliber", "_bulletLength", "_bulletMass", "_transonicStabilityCoef", "_dragModel", "_ballisticCoefficients", "_velocityBoundaries", "_atmosphereModel", "_ammoTempMuzzleVelocityShifts", "_muzzleVelocityTable", "_barrelLengthTable", "_muzzleVelocityVariationSD"];
-(_weapon call FUNC(readWeaponDataFromConfig)) params ["_barrelTwist", "_twistDirection", "_barrelLength"];
+([_weapon, _muzzle] call FUNC(readWeaponDataFromConfig)) params ["_barrelTwist", "_twistDirection", "_barrelLength"];
 
 private _temperature = nil; // We need the variable in this scope. So we need to init it here.
 
diff --git a/addons/advanced_ballistics/functions/fnc_readWeaponDataFromConfig.sqf b/addons/advanced_ballistics/functions/fnc_readWeaponDataFromConfig.sqf
index 10a366f00ac..9ea28a9a818 100644
--- a/addons/advanced_ballistics/functions/fnc_readWeaponDataFromConfig.sqf
+++ b/addons/advanced_ballistics/functions/fnc_readWeaponDataFromConfig.sqf
@@ -5,7 +5,8 @@
  * Reads the weapon class config and updates the config cache
  *
  * Arguments:
- * weapon - classname <STRING>
+ * 0: Weapon <STRING>
+ * 1: Muzzle <STRING> (optional)
  *
  * Return Value:
  * 0: _barrelTwist <NUMBER>
@@ -13,15 +14,22 @@
  * 2: _barrelLength <NUMBER>
  *
  * Example:
- * ["weapon"] call ace_advanced_ballistics_fnc_readWeaponDataFromConfig
+ * [currentWeapon player, currentMuzzle player] call ace_advanced_ballistics_fnc_readWeaponDataFromConfig
  *
  * Public: No
  */
 
 params ["_weapon"];
 
-GVAR(weaponData) getOrDefaultCall [_weapon, {
-    private _weaponConfig = (configFile >> "CfgWeapons" >> _weapon);
+private _muzzle = param [1, _weapon];
+
+GVAR(weaponData) getOrDefaultCall [[_weapon, _muzzle], {
+    // For most weapons muzzle == weapon (config value of "this" for muzzle)
+    private _weaponConfig = if (_muzzle == _weapon) then {
+        configFile >> "CfgWeapons" >> _weapon
+    } else {
+        configFile >> "CfgWeapons" >> _weapon >> _muzzle
+    };
 
     private _barrelTwist = 0 max getNumber(_weaponConfig >> "ACE_barrelTwist");
     private _twistDirection = parseNumber (_barrelTwist != 0);
diff --git a/addons/scopes/functions/fnc_calculateZeroAngleCorrection.sqf b/addons/scopes/functions/fnc_calculateZeroAngleCorrection.sqf
index d90aa97390e..56168326654 100644
--- a/addons/scopes/functions/fnc_calculateZeroAngleCorrection.sqf
+++ b/addons/scopes/functions/fnc_calculateZeroAngleCorrection.sqf
@@ -8,9 +8,10 @@
  * 1: New Zero range <NUMBER>
  * 2: Bore height <NUMBER>
  * 3: Weapon <STRING>
- * 4: Ammo <STRING>
- * 5: Magazine <STRING>
- * 6: Advanced Ballistics enabled? <BOOL>
+ * 4: Muzzle <STRING>
+ * 5: Ammo <STRING>
+ * 6: Magazine <STRING>
+ * 7: Advanced Ballistics enabled? <BOOL>
  *
  * Return Value:
  * zeroAngleCorrection <NUMBER>
@@ -21,7 +22,7 @@
  * Public: No
  */
 
-params ["_oldZeroRange", "_newZeroRange", "_boreHeight"/*in cm*/, "_weapon", "_ammo", "_magazine", "_advancedBallistics"];
+params ["_oldZeroRange", "_newZeroRange", "_boreHeight"/*in cm*/, "_weapon", "_muzzle", "_ammo", "_magazine", "_advancedBallistics"];
 
 // When FFV from vehicles currentZeroing will report 0 so just bail
 if (_oldZeroRange <= 0) exitWith { 0 };
@@ -46,7 +47,7 @@ GVAR(zeroAngleCorrectionData) getOrDefaultCall [[_oldZeroRange, _newZeroRange, _
     private _trueZero = if (_advancedBallistics) then {
         // Get Weapon and Ammo Configurations
         (_ammo call EFUNC(advanced_ballistics,readAmmoDataFromConfig)) params ["_airFriction", "_caliber", "_bulletLength", "_bulletMass", "_transonicStabilityCoef", "_dragModel", "_ballisticCoefficients", "_velocityBoundaries", "_atmosphereModel", "_ammoTempMuzzleVelocityShifts", "_muzzleVelocityTable", "_barrelLengthTable", "_muzzleVelocityVariationSD"];
-        (_weapon call EFUNC(advanced_ballistics,readWeaponDataFromConfig)) params ["_barrelTwist", "_twistDirection", "_barrelLength"];
+        ([_weapon, _muzzle] call EFUNC(advanced_ballistics,readWeaponDataFromConfig)) params ["_barrelTwist", "_twistDirection", "_barrelLength"];
 
         if (missionNamespace getVariable [QEGVAR(advanced_ballistics,barrelLengthInfluenceEnabled), false]) then {
             private _barrelVelocityShift = [_barrelLength, _muzzleVelocityTable, _barrelLengthTable, _initSpeed] call EFUNC(advanced_ballistics,calculateBarrelLengthVelocityShift);
diff --git a/addons/scopes/functions/fnc_firedEH.sqf b/addons/scopes/functions/fnc_firedEH.sqf
index 7345d261ca2..cade0fe7244 100644
--- a/addons/scopes/functions/fnc_firedEH.sqf
+++ b/addons/scopes/functions/fnc_firedEH.sqf
@@ -33,7 +33,7 @@ if (GVAR(correctZeroing) || GVAR(simplifiedZeroing)) then {
     private _boreHeight = (_unit getVariable [QGVAR(boreHeight), [0,0,0]]) select _weaponIndex;
     private _oldZeroRange = currentZeroing _unit;
     private _newZeroRange = [_unit] call FUNC(getCurrentZeroRange);
-    private _zeroCorrection = [_oldZeroRange, _newZeroRange, _boreHeight, _weapon, _ammo, _magazine, _advancedBallistics] call FUNC(calculateZeroAngleCorrection);
+    private _zeroCorrection = [_oldZeroRange, _newZeroRange, _boreHeight, _weapon, _muzzle, _ammo, _magazine, _advancedBallistics] call FUNC(calculateZeroAngleCorrection);
 
     _zeroing = if (GVAR(simplifiedZeroing)) then {
         [0, 0, _zeroCorrection - _baseAngle]