From the horses mouth.
Called Barnes today, Asked tech services for load data. After sorting out some initial confusion, between the 350gr XFB bullet I have and the "New" version (file under always double check "ALL" load data sources), I got the following load data. 350gr. XFB; Varget: 50gr 1875 fps - 54gr 2100fps 24" barrel. 4895: 48gr 1875fps - 52gr 2100fps.
cartridge?
by bj 
, Tuesday, April 28, 2015, 19:48 (3501 days ago) @ ERSisk
It would be helpful to know the cartridge involved.
Also when asking about load data, if it is in any way a high intensity cartridge, it is helpful to know the brand of cases involved, and the primers used.