From the Rainier loading manual, a 147gr HP or TRN bullet using Blue Dot powder, OAL at 1.169", WSP primers, Universal receiver.
TRN bullet
Start 5.0grs Blue Dot =757'ps pressure 21,300PSI
Max 6.1grs Blue Dot = 932'ps pressure 26,800PSI
HP bullet
5.0 grs Blue Dot = 740'ps pressure 20,700 PSI
6.1 grs Blue Dot = 960'ps pressure 28,000PSI
SAAMI accepted standard pressure 35,000PSI,
+P loads 38,500PSI