diff --git a/gamedir/Data-1.13/CTHConstants.ini b/gamedir/Data-1.13/CTHConstants.ini
index 6a79270ff..3d255255d 100644
--- a/gamedir/Data-1.13/CTHConstants.ini
+++ b/gamedir/Data-1.13/CTHConstants.ini
@@ -323,8 +323,13 @@ AIM_DEX = 2.0
 ; actual penalty applied.  Setting it too low will make it impossible to use
 ; scopes within effective range
 ;------------------------------------------------------------------------------------------------------------------------------
-
 AIM_TOO_CLOSE_SCOPE = -4.0
+;------------------------------------------------------------------------------------------------------------------------------
+; This value defines at which point below scope range the AIM_TOO_CLOSE_SCOPE based penalty starts. A value of 0.0 removes
+; scope penalties. A value of 1.0 means the penalty starts as soon as the target is just a little below
+; scope range. 0.5 means penalty starts at half the scope range and so on...
+;------------------------------------------------------------------------------------------------------------------------------
+AIM_TOO_CLOSE_THRESHOLD = 0.8
 
 AIM_GUN_CONDITION = -2.0
 AIM_LOW_MORALE = -2.0
diff --git a/gamedir/Data/CTHConstants.ini b/gamedir/Data/CTHConstants.ini
index 6a79270ff..3d255255d 100644
--- a/gamedir/Data/CTHConstants.ini
+++ b/gamedir/Data/CTHConstants.ini
@@ -323,8 +323,13 @@ AIM_DEX = 2.0
 ; actual penalty applied.  Setting it too low will make it impossible to use
 ; scopes within effective range
 ;------------------------------------------------------------------------------------------------------------------------------
-
 AIM_TOO_CLOSE_SCOPE = -4.0
+;------------------------------------------------------------------------------------------------------------------------------
+; This value defines at which point below scope range the AIM_TOO_CLOSE_SCOPE based penalty starts. A value of 0.0 removes
+; scope penalties. A value of 1.0 means the penalty starts as soon as the target is just a little below
+; scope range. 0.5 means penalty starts at half the scope range and so on...
+;------------------------------------------------------------------------------------------------------------------------------
+AIM_TOO_CLOSE_THRESHOLD = 0.8
 
 AIM_GUN_CONDITION = -2.0
 AIM_LOW_MORALE = -2.0