I have been loading for a few different 300 WSM's for the last couple of year's. I switched to H414 this year for two of them. I am getting an additional 100-200 fps, and better accuracy. I am getting 3350 for a 26 inch Savage 12FVSS with the 155 grain Palma bullet from Sierra.

Here is a picture of my 300WSM. It is a real shooter. Tom.