My Sierra 4th edition list 55.6 grs. AA-3100, 2700 fps WW case, WW WLR primer, OAL 3.290 as the accuracy load for 175's.
My Sierra 5th edition list 49.0 grs Viht N550, 2600 fps, Federal case, Fed 210 primer, OAL 3.290 as the accuracy load for 175's.
I have always found the accuracy loads from Sierra to be just that, accurate. Don't know about the OAL with the Berger, it's longer than the Sierra. E-mail Berger, they will give you data.