In 257 Rbts and 250/250AI, I chose to go with the 80 TTSX and 75 Gr VMAX. I use the same powder/charge weight and they shoot to same POI. Easy.
My 24 inch Douglas barreled 257, 1/10 shoots the 75grain v-max and the 100 TTSX about the same POI too. Not enough to be concerned about. I love rifles like that.
