diff --git a/addons/csw/XEH_PREP.hpp b/addons/csw/XEH_PREP.hpp
index 5966578aca..5d461ae415 100644
--- a/addons/csw/XEH_PREP.hpp
+++ b/addons/csw/XEH_PREP.hpp
@@ -20,6 +20,7 @@ PREP(canGetIn);
 PREP(getIn);
 
 PREP(getCarryMagazine);
+PREP(getNearbySources);
 PREP(proxyWeapon);
 
 PREP(reload_actionsLoad);
diff --git a/addons/csw/functions/fnc_ai_handleGetIn.sqf b/addons/csw/functions/fnc_ai_handleGetIn.sqf
index c45fff5364..90c071eddb 100644
--- a/addons/csw/functions/fnc_ai_handleGetIn.sqf
+++ b/addons/csw/functions/fnc_ai_handleGetIn.sqf
@@ -17,9 +17,13 @@ TRACE_3("getInEH:",_staticWeapon,_role,_gunner);
 if ((!local _gunner) || {[_gunner] call EFUNC(common,isPlayer)}) exitWith {};
 if (someAmmo _staticWeapon) exitWith {};
 
-TRACE_2("need ammo",someAmmo _staticWeapon,magazinesAllTurrets _staticWeapon);
+// turret can be empty when AI is forcefully moved to the vehicle
+if (_turret isEqualTo []) then {
+    _turret = (assignedVehicleRole _gunner) select 1;
+};
 
 // this doesn't handle multi-weapon turrets, need a "turretWeapon" event or a PFH to do that
 private _weapon = (_staticWeapon weaponsTurret _turret) select 0;
+TRACE_4("need ammo",someAmmo _staticWeapon,magazinesAllTurrets _staticWeapon,_turret,_weapon);
 
-[_staticWeapon, _gunner, weapon] call FUNC(ai_reload);
+[_staticWeapon, _gunner, _weapon] call FUNC(ai_reload);
diff --git a/addons/csw/functions/fnc_ai_reload.sqf b/addons/csw/functions/fnc_ai_reload.sqf
index 4861fb5ead..fcf4bb904b 100644
--- a/addons/csw/functions/fnc_ai_reload.sqf
+++ b/addons/csw/functions/fnc_ai_reload.sqf
@@ -23,24 +23,12 @@ private _reloadNeededAmmo = -1;
 
 private _cfgMagGroups = configFile >> QGVAR(groups);
 
-// see fnc_reload_getLoadableMagazines, but AI doesn't get filtered out
-private _nearSupplies = (_staticWeapon nearSupplies 5) select {
-    isNull (group _x) ||
-    {!([_x] call EFUNC(common,isPlayer)) && {[side group _gunner, side group _x] call BIS_fnc_sideIsFriendly}}
-};
-
-// add gunner since it won't show up in nearSupplies
-_nearSupplies pushBack _gunner;
+private _sources = [_gunner] call FUNC(getNearbySources);
 
 // Find if there is anything we can reload with
 // see fnc_reload_getLoadableMagazines, though we don't care about AI pulling from the best ammo possible
 {
     scopeName "findSource";
-    if (_x isKindOf "CAManBase") then {
-        // unit inventory needs to be added manually
-        _nearSupplies append [uniformContainer _x, vestContainer _x, backpackContainer _x];
-        continue
-    };
     private _xSource = _x;
 
     private _cswMagazines = (magazineCargo _xSource) select {isClass (_cfgMagGroups >> _x)};
@@ -61,7 +49,7 @@ _nearSupplies pushBack _gunner;
             };
         } forEach _cswMagazines;
     } forEach (compatibleMagazines _weapon);
-} forEach _nearSupplies;
+} forEach _sources;
 if (_reloadMag == "") exitWith {TRACE_1("could not find mag",_reloadMag);};
 
 // Figure out what we can add from the magazines we have
diff --git a/addons/csw/functions/fnc_getNearbySources.sqf b/addons/csw/functions/fnc_getNearbySources.sqf
new file mode 100644
index 0000000000..7c9e3e96ba
--- /dev/null
+++ b/addons/csw/functions/fnc_getNearbySources.sqf
@@ -0,0 +1,40 @@
+#include "script_component.hpp"
+/*
+ * Author: LinkIsGrim
+ * Gets available ammo sources for loading a static weapon
+ *
+ * Arguments:
+ * 0: Unit attempting to load <OBJECT>
+ *
+ * Return Value:
+ * Ammo sources <ARRAY of OBJECT>
+ *
+ * Example:
+ * [player] call ace_csw_fnc_getNearbySources
+ *
+ * Public: No
+ */
+params ["_unit"];
+
+[_unit, {
+    params ["_unit"];
+    private _nearSupplies = (_unit nearSupplies 5) select {
+        isNull (group _x) ||
+        {!([_x] call EFUNC(common,isPlayer)) && {[side group _player, side group _x] call BIS_fnc_sideIsFriendly}}
+    };
+
+    _nearSupplies pushBack _unit;
+    {
+        if (_x isKindOf "CAManBase") then {
+            _nearSupplies append [uniformContainer _x, vestContainer _x, backpackContainer _x];
+            continue;
+        };
+
+        {
+            _x params ["", "_container"];
+            _nearSupplies pushBack _container;
+        } forEach (everyContainer _x);
+    } forEach _nearSupplies;
+
+    _nearSupplies select {!(_x isKindOf "CAManBase")}  // return
+}, _unit, QGVAR(nearbySourcesCache), NEARBY_SOURCES_CACHE_EXPIRY, QGVAR(clearNearbySourcesCache)] call EFUNC(common,cachedCall);
diff --git a/addons/csw/functions/fnc_reload_getLoadableMagazines.sqf b/addons/csw/functions/fnc_reload_getLoadableMagazines.sqf
index 2906c33b79..58d8a6b9c9 100644
--- a/addons/csw/functions/fnc_reload_getLoadableMagazines.sqf
+++ b/addons/csw/functions/fnc_reload_getLoadableMagazines.sqf
@@ -23,32 +23,15 @@ private _magGroupsConfig = configFile >> QGVAR(groups); // so we don't solve in
 private _availableMagazines = createHashMap; // slower than array, still needed for setting source of magazine
 
 // filter enemy & player units while allowing pulling from friendly AI, crates, etc
-private _nearSupplies = (_vehicle nearSupplies 5) select {
-    isNull (group _x) ||
-    {!([_x] call EFUNC(common,isPlayer)) && {[side group _player, side group _x] call BIS_fnc_sideIsFriendly}}
-};
-
-// add caller to nearSupplies since players will get filtered out
-_nearSupplies pushBack _player;
+private _sources = [_player] call FUNC(getNearbySources);
 
 // send the mag source with the highest ammo
 private _bestMagAmmo = createHashMap;
 
 {
-    if (_x isKindOf "CAManBase") then {
-        // unit inventory needs to be added manually
-        _nearSupplies append [uniformContainer _x, vestContainer _x, backpackContainer _x];
-        continue;
-    };
     private _xSource = _x;
     private _cswMags = (magazinesAmmoCargo _xSource) select {isClass (_magGroupsConfig >> _x select 0)};
 
-    // add containers inside containers
-    {
-        _x params ["_classname", "_container"];
-        _nearSupplies pushBack _container;
-    } forEach (everyContainer _x);
-
     {
         _x params ["_classname", "_ammo"];
         if (_ammo > (_bestMagAmmo getOrDefault [_classname, 0])) then {
@@ -56,7 +39,7 @@ private _bestMagAmmo = createHashMap;
             _availableMagazines set [_classname, _xSource];
         };
     } forEach _cswMags;
-} forEach _nearSupplies;
+} forEach _sources;
 
 if (_availableMagazines isEqualTo createHashMap) exitWith { [] }; // fast exit if no available mags
 
diff --git a/addons/csw/functions/fnc_reload_handleReturnAmmo.sqf b/addons/csw/functions/fnc_reload_handleReturnAmmo.sqf
index 46b0000fdc..f2f07c1761 100644
--- a/addons/csw/functions/fnc_reload_handleReturnAmmo.sqf
+++ b/addons/csw/functions/fnc_reload_handleReturnAmmo.sqf
@@ -24,6 +24,9 @@ private _carryMaxAmmo = getNumber (configFile >> "CfgMagazines" >> _carryMag >>
 private _fullMagazines = floor (_ammo / _carryMaxAmmo);
 private _bulletsRemaining = _ammo % _carryMaxAmmo;
 
+// get nearby units to clear cache
+private _nearUnits = _unloadTo nearEntities ["CAManBase", 5];
+
 private _unloadToUnit = _unloadTo isKindOf "CAManBase";
 
 if (_unloadToUnit) then {
@@ -37,7 +40,9 @@ if (_unloadToUnit) then {
     };
 };
 
-if ((_fullMagazines == 0) && {_bulletsRemaining == 0}) exitWith {};
+if ((_fullMagazines == 0) && {_bulletsRemaining == 0}) exitWith {
+    [QGVAR(clearNearbySourcesCache), [], _nearUnits] call CBA_fnc_targetEvent;
+};
 
 // Try to use object inventory or existing container
 private _container = [_unloadTo, objNull] select _unloadToUnit;
@@ -71,3 +76,5 @@ if (_fullMagazines > 0) then {
 if (_bulletsRemaining > 0) then {
     _container addMagazineAmmoCargo [_carryMag, 1, _bulletsRemaining];
 };
+
+[QGVAR(clearNearbySourcesCache), [], _nearUnits] call CBA_fnc_targetEvent;
diff --git a/addons/csw/functions/fnc_reload_loadMagazine.sqf b/addons/csw/functions/fnc_reload_loadMagazine.sqf
index 411c8717b4..cdc0dff751 100644
--- a/addons/csw/functions/fnc_reload_loadMagazine.sqf
+++ b/addons/csw/functions/fnc_reload_loadMagazine.sqf
@@ -49,6 +49,10 @@ private _onFinish = {
 
     if (_bestAmmoToSend == -1) exitWith {ERROR_2("No ammo [%1 - %2]?",_xMag,_bestAmmoToSend);};
     [_magSource, _carryMag, _bestAmmoToSend] call EFUNC(common,removeSpecificMagazine);
+
+    private _nearUnits = _vehicle nearEntities ["CAManBase", 5];
+    [QGVAR(clearNearbySourcesCache), [], _nearUnits] call CBA_fnc_targetEvent;
+
     if (_bestAmmoToSend == 0) exitWith {};
 
     private _returnTo = _magSource;
diff --git a/addons/csw/script_component.hpp b/addons/csw/script_component.hpp
index 29521039f2..3917dad901 100644
--- a/addons/csw/script_component.hpp
+++ b/addons/csw/script_component.hpp
@@ -21,6 +21,8 @@
 #define DISTANCE_FROM_GUN 1.5
 #define RELATIVE_DIRECTION(direction) [DISTANCE_FROM_GUN, direction]
 
+#define NEARBY_SOURCES_CACHE_EXPIRY 5
+
 #ifdef FAST_PROGRESSBARS
     #define TIME_PROGRESSBAR(X) ((X) * 0.075)
 #else