They are still making them. You are all over the map with your question.. Yes, they finally started putting cross bolts in the 375 stocks. That started in '56. They went to 2 cross bolts in '57 and then later changed it up in '59. I actually saw a used supergrade 375H&H at Cabela's the other day.. I don't even know if it was a classic or BACO. I'm not in the market for one, so just skimmed right on by it.. You are asking for an awful lot if you expect any of the 375's to weigh less than 9 pounds.
Bet it was BACO bsa. There was a limited run that they did for Cabela’s. I’m not aware of a non CS classic supergrade chambered in 375; safari express and super express seem to have been the standard new haven classic offerings.
