As the title states, unfortunatly I live in California and need to use copper for hunting. I just purchased a Savage model 99 in a vintage gun store on Thursday and am trying to work up a load, using re formed 308 brass for the 300 Savage cartridge with 150 grain Hornady gmx bullets and hogdon 4895. I've seen suggested loads between 37 and 39.5 grains of powder, and further misfortune finds that 300 sav is unobtanium locally and we can't order ammunition online here. So I'm kinda stuck.

Anyone have any thoughts on loading 300 sav, such as bullet seat depth and throat length? I've only ever loaded for 30-06 before, which is why I have 150 grain gmx bullets and h 4895 on hand.