65gr starting load may be too hot with a 208 or 210. When I emailed Phil at Berger, the data he gave me showed a max load of 66.7 with a 215 Hybrid which has a shorter bearing surface than the 208 and 210. Email Phil and he'll give you some great data.
And FWIW I'm shooting a factory savage 300WSM and my velocities were almost spot on to what Phil gave me via emailed data.
Have fun, I really like R26, but start a bit lower than 65gr. Good luck.