6.5 Saum starting load using 147 eld-m

[6cmShooter]

I just picked up a a 6.5 saum and trying to find a starting point using ramshot magnum and winchester staball hd shooting a 147gr eld-m bullet. I've found data for that combo for the 6.5 prc. Was wondering if I'm able to use that as a base line or if someone has actual data with using that combo.