The quickest way to tighten up your groups is to ditch the bipod and use a proper front rest like a Caldwell and a rear bag for the stock. A bipod is good enough for varmint accuracy, but not for determining best groups on paper with various loads. My findings anyway with various rifles over the years.
My first loads were with a sandbags. I just threw it on last night to play with, my plan tonight was to ring steel and put a lot of rounds through it.


















































