I've chrono'ed bunches of various M2 Ball loads over the years and never got 2850 fps. 27-2800 was the range. Some WWI Ball ammo fetched up 2700 fps on the bean.
Oops, my bad. I checked my copy of Hatcher's notebook and it reports, on page 29, that the M2 velocity specification was 2805 fps, not 2850.
