I know A LOT of guys get caught up on muzzle velocity and I agree that it is VERY important but I agree that the fellow that said "shoot what your gun likes"..... I believe that it is the most important.
Also, have you ran the numbers? I bet that your 225 passes your 208 at somewhere around 850 yds. with the velocity you posted (in fps) and the extra weight would give the extra energy on target.
Some of the guys suggested that you could change your bullet and/or powder. Have you thought about changing your case??? For me with some of my loads on my 300wm Federal brass gives me about 100 fps more than my Norma brass. The thicker walled brass will raise your pressure so take caution.
Good luck.