Free: Contests & Raffles.
Max loads can be done in the 30-06 with standard primers. Max loads with 4831 may or may not be the most accurate. Only your gun can tell you that. I am sure you will find a max or near max load in either 4831 or 4350 that shoots well. I use 58 grains of IMR 4350 and 165 grain slugs in my rifle. Have fun.