I could be wrong in assuming this but I don't think you would get 2800 with a 210gr projectile, if memory serves me I think the average velocity for a 175 -180 grain projectile in a 284 is 2600-2800, I can't see how you could get a larger projectile going faster from the same case capacity. 2800 for a 210 TTSX would require a decent amount of powder to shunt it down the barrel.
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