look at the sheet i sent you and other reloading data points. the bullet you stated is optimal to be loaded for in between of 2500 and 2600fps.
make sure you have a chronometer for all the tests, start with a grain under the max load published in the sheet i sent, as it is on a very low side for an AR10 - i presume you do it for a gas gun.
then load groups of 5 in .5gr increments, shoot it monitoring speed and overpressure signs.
if your gun is not completely broken in yet - under a 100 shots - then your speeds will be lower. i found for my gun the clear overpressure signs began at the 46gr varget for the 168gr bullet. the posted max load in there for that bullet was 43.5gr.
it is relevant for my gun, IT DOES NOT mean it will/may be relevant for yours. but it gives an idea of how a 20" AR10 differs from pressure build up in the 26" bolt savage.
with a a 7.62 barrel you must go gentler than with a 308, and listen to the bolt, check brass after each shot and, express respect to the weapon you are trying to force to the limit.
also, again, it is not the goal to load to the max. the goal is to find a node that works best accuracy wise with the acceptable speed out of the muzzle, for the given application.