Good morning gentlemen. I finally got my rifle from the gunsmith in 300 WSM and am ready to go. I have good supplies of H1000, H4831SC, Retumbo and the new IMR 7977. I also have 500 Berger 215gr bullets which I am commited to here. Can anyone help me with load data for this bullet with any of the powders mentioned? Rifle is the 300 WSM with a 26” Bartlein barrel, defensive edge brake and Greybull Precision stock in trued Rem 700 long action. I made up a dummy round with bullet seated way out and throated the barrel accordingly. Topped off with a Nightforce 2.5-10 compact.
I would appreciate your wisdom with this project.