From my Accurate manual.
Load data for the 300 Savage with AA2460 with 180 gr Jacketed bullet (Sierra) Start load 33.8 grs Max load 37.5 grs.
For 150 gr bullets start load is 36 grs max 40 grs
For 165 gr bullets Start is 36 grs Max is 40 grs. Yes the load data for both 150 and 165s is the same.
It does not list any data for any of their powders for a 125 gr bullet but I have a wildcat based one the 300 Savage case having the shoulder pushed back 10 thousands inch but left the same over all length 30X47 HBR. I use 125 Nosler ballistic tips and they are a kill them in their tracks deer bullet. AA 2460 is in a burning rate that a max load would most likely be right at 42 grs with 125's. Start lower and work up slowly.