The maximum sustained wind speed at landfall is estimated to have been near 160 mph (260 km/h). However, recent reanalysis studies conducted by the NOAA Hurricane Research Division (HRD) suggest that the maximum sustained winds were more likely around 185 mph (295 km/h) at landfall.
From Wikipedia re Camille:
Camille was the strongest landfalling tropical cyclone recorded worldwide, and one of only four tropical cyclones worldwide ever to achieve wind speeds of 190 miles per hour (310 km/h).
I was at training at Keesler AFB in the mid 80’s. It’s about a mile inland. There are tracks on the outside. The old-hands told me waves were crashing over those tracks. (This was during Elana’s cleanup 1985)