Thanks for all the information, I knew if I ask the people in this forum I would get good information.

In my 303 and my 30-30 I'm using 15grns of SR4759 for my cast bullet loads. I could see where 14grns would be about right.

I'll start out with this load with a Lyman 311041.

I always use a neck expander on the case when loading cast bullet so the bullet goes in without shaving the lead off the side. I run the expander down just enough so it flares out the end enough to guide the bullet in, I use a .309. In the 300 savage the .309 would size the entire neck length before it starts to flare out the end. Is the neck expander going to give me problems? Or do I just need to lightly crimp the case after seating the bullet.