SS Braunschweig 1873 - 1896

My great grandparents arrived in New York 29 Oct 1880 on the SS Braunschweig. Ship information indicates accomodations for 34 1st class, 33 2nd class, and 600 steerage. However, my great grandparents are listed in steerage on line 960 - 967 with the last line number 1209. I cannot resolve the conflict between 600 steerage vs 1209 passenger names. How many pasengers was the SS Braunschweig capable of carrying?