NB - 'chuck':  Your, 1897 dated, Steyr  Krag was built in Austria and started life as a Model 1894 Norwegian Army rifle (in 6.5 X 55mm).  Norway contracted with Steyr to build some rifles during 1896 and 1897.  The 1897 serial numbers ranged from 30,001 to 39,000.  Your bolt may have been replaced, but, the "8 & 762" numbers appear to match the last four digits of your receiver's number, 38,762.  Some 'Steyr-Krags' found their way to South Afrika, during the Boer War.  These are quite rare and IIRC, not in your serial number range.
  It is likely your Krag was rechambered in North America for the 6.5 X 54mm Mannicher-Schoenauer cartridge, after WW2.  In the 1950s, Dominion (Canadian Industries Ltd.) 6.5mm M-S ammo was easier to get than 6.5mm 'Swede' or Italian-Carcano.
  The chamber-alteration was either done by shortening the dismounted, left-hand threaded, barrel at the breech end and re-chambering or by inserting a chamber 'liner'.
  As I advised in an earlier response, it would be a good idea to have this rifle checked by a knowledgeable 'gun person'.  (Attached photo of 'Boer' General Tobias Smuts with Model 1894 Steyr made Krag).
  Photos of your rifle would be enjoyed by all and may beget more information.

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