It does not appear "pushed back", there is no gap at the front, there are no gaps at sides. I have a Norway 30/06 and only receiver is cut (notch) out, magazine is untouched. While it has rounded corners, does not have the large arch yours does. Cross bolt should have wood even with its top--back to the mag. The mag fits tight into its opening in reciever so all the way back to rear action bolt, recoil is absorbed.
You will have to remove recoil C.B. to get a clear picture to show whats going on, can't tell metal from wood now. Or get a clear idea of depth of wood at various points. Can you show pic of original stock at that point?
Last edited by dave; 11-23-2014 at 01:12.
I made a tool for cross bolt using a small open end wrench of proper size (ignition wrench set). Just grid the ends done to pins to fit into holes. Have removed many, many cross bolt with it over many years. Did the same for Czech band screws with the span holes using old screw driver.