I recently picked up a Winchester 97 takedown which was manufactured in 1928 according to the serial number. From what I have read, the chamber should be checked if it is 2 3/4" rather than 2 5/8". It seems that more often than not the chamber must be lengthed as well as making the forcing cone longer. Any suggestions as to where to go to have this done? I live near Cabela's in Hamburg, but willing to travel a reasonable distance. Thank you.