[Thor]

If the main spring is weak the ejection is probably more robust than usual. This condition also puts unnecessary extra stress on the frame ears and ejector. Sounds like a weak mainspring and a strong firing pin spring. Get a factory replacement spring from Wolff, but dont get the +10% spring. Just before the action closes it begins to compress the firing pin spring, that is what it sounds like is preventing it from closing. On a Luger that has the right spring set up, you can just crack the action and the firing pin spring will hold it open until you release the firing pin spring compression by pulling the trigger. A normal spring set up would close the action completely by the firing sequence where the toggle is going all the way back and up. The main spring is the first thing I would replace and try the range trip again.