2950 or 3100? So what?
imq707s--
I have zero experience with loading for 7 mm Rem Mag but I've loaded a bunch of centerfire rifle and carloads of pistol ammo.
I believe you have a good handle on the situation already:
I've shot the 67gr. (max load in lee manual) without any problems at all, but 64gr. is more accurate.
If you know your load is accurate and have confidence in it and your ability to hit with it, what difference could another 100--150 fps make? I understand the wish to know the true velocity, if for no other reason than to make intelligent use of the drop tables. Sorry I can't help on that score.
Best of luck--
Johnny
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