I have tried that exact same combo of powder and bullet in the 7 mag just not that high of a powder charge. My velocity was way lower than yours. I would be happy out of any of those numbers as long as they were accurate.
I used that same bullet with 64 grains of RL22 in my 7mm RM. Probably not the fastest out there but damn it was an accurate load. Great bullet too, never caught one, they always went through. Lots of damage though so well placed bullets meant the critters didn't go to far.