Too many variables. Case volume. barrel length. seating depth, bore dimensions all make a difference. If the data dose not also show pressure how do you know if it shoot out of a SAMMI Standard test barrel? It might not have had rifleing in the barrel. That why you some times see data with the bullet seated deep in the case. It gives them free fps because the usable case vol. is decreased that causes higher pressures that = higher fps. Powder manufacturers are there to sell powder not give the most accurate load.
