Yup. Data for 7x57's varies somewhat, though, due to differences in throat lengths. plus caution about old rifles.
I have used the 156 Oryx quite a bit from my short-throated Serengeti rifle. The load used is 46 grains of H4350, for right around 2700 fps from a 21" barrel. It among the most accurate loads in that rifle, and has worked well on animals up to wildebeest in size.
