I don't know about 170s, however, 50-51g IMR4064 and a 150g Speer Spire point is ~2900fps. This load closely duplicates the original military specs for the 154g 8mm of WWII. The only thing I wonder about, and haven't checked, is the twist rate of the Remington 700 vs the k98k.
I think the 8x57 is underrated.
Good luck.
