Go to the Hodgdon website and you will find a bunch of .325 WSM load data. Expect that Nosler might have some available now also, they were working on it a bunch. I could not get 3000 fps with my handloads in my rifles, but did get close with factories.
Here is something I use, start around 69 gr. H4831 Short Cut and work your way up, my load is way up there but yours might be different. My load shoots very accurately, sub 0.5" if I can hold onto the rifle for three shots.
MatchKings outshoot the Accubonds in both rifles by a tad, but the Accubonds fly almost as flat as the MK.
My velocities are 2865 with M'Kings and 2845 with Accubonds with the same powder charge. Adjust the overall length a bit tho. Win. mag. primers.
Here are some drops:
200 gr. MatchKings and H4831SC powder, Win. case and mag primer
YDS MOA
100 0
200 1.5
300 4.5
400 6.75
500 9.5
550 11.0
600 12.5
650 14.5
700 16.0
800 21.0
Accubond CT DROPS
YDS MOA
100 0
200 1.5
300 4.0
400 6.5
500 8.75
550 11.0
600 12.5
650 13.5
700 15.0