Can't knock the 210, but even in my former 338/06, I felt the heavier bullet was more efficient in it's case size, the 225 should pass up the 210 downrange w/little difference in drop.
Again, the 210 is proven, but I like middle/heavy weight bullets in larger capacity rounds as their trajectory is often fine at the speeds they run.
Flip a coin, sight in and bring a sharp knife
