The 300 Savage is my pet cartridge. I don't know what range you are working with, but off the cuff I would go with a 180 grain flat base spitzer or round nose (like Hornadys) and charge it with Varget (see lyman 48 edition). The twist should be 1 in 12" and is good for stabilizing 180's. To tune the accuracy, you can try increasing your COL in .010" increments once you have a load with a velocity you like. Use care to stay out of the lands. My limited experience with the 150 pro hunters is that while super accurate in my 300 Savage, they are fairly frangible and I would not use them on elk. 50 years ago the 300 Savage was a common caliber for elk. Limit your shots to 200 yards and you should be OK IMHO. The 180's will give you the penetration.
300jimmy
