Restrict my tank gun rotation.

So I got a RTS tank turret working, the gun less so, it should rotate up and down to align with the target, but when the target (cube) moves, it can't be reliably be constrained. I tried a lot, but I got no idea of how to fix it, had to turn the backups and I know that Euler angles will not accept "-" degrees .but since nothing is working, this is what I got now: By the way, the gun is following a cube by the tag in the picks: Plz help :( stop at this angle

sadness dot png

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     if(turret1)
     {
         Vector3 targetDirection = Quaternion.LookRotation(target.position - turret1.transform.position).eulerAngles;

         turret1.transform.localRotation = Quaternion.Euler(Vector3.Scale(targetDirection, rotationMaskTurret1));
     }

     if (gun1)
     {
         Vector3 targetDirection = Quaternion.LookRotation(target.position - gun1.transform.position).eulerAngles;

         targetDirection.x = Mathf.Clamp(targetDirection.x, xMin1, xMax1); 

         gun1.transform.rotation = Quaternion.Euler(targetDirection);
     }

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