I am shooting the 6mm rem with a 62grain berger target and 43g of varget getting 3610fps . My question what is the max load for this and fps should I be getting with this rifle and powder to use ? Willing to buy what ever powder I need to get to make this possible . Should it be slow burn or fast burm or ? How do you work up to a max load and be safe in the process . What steps should I be taking in doing so ? Really want to maximize this load .