I am looking for some pet loads for the 300WSM, I have got 3 boxes of Swift Scirocco's in 150 grn and just itchin to see how they will do. Thanks for any help

For accuracy, I have good luck with Varget in near max loads. It will not give quite the top velocities, but my 300WSM (M70 classic stainless) is easily sub MOA with this powder and Nosler BT's.

My two favorites are 59Gr. of Reloder 15 and a Barnes 168gr. xlc, and 73 gr. of IMR 4831 topped with a barnes 150gr. triple shok.
Both shoot under 1" at 100 yds. On days that I get out of the way they can shoot .5-.75"

Simdow