I got more consistent ES and SD with a starting load of 69gr of R-25 and 1/2"-3/4" groups at the 3.27"OAL, but was looking for faster speeds. Below is the results of more powder....
115 Berger
71gr R-25
Fed 215 Primer
Wby Brass
3.29" OAL
3201 fps
3/4" or less groups at 100yds
ES- 62
SD- 24
115 Berger
71gr R-25
Fed 215 Primer
Wby Brass
3.27" OAL(2.6640" Comparator)
3207 fps
2" groups at 100yds
ES- 39
SD- 17