I have 2 loads for my .54 rifle, one heavy and one light. I like to shoot woods walks at various ML clubs and you only have to put a hole or bend one of their steel targets at 35 yds. with a heavy load to make them mad. On paper I use the 65 gr. of 3F which for my rifle is the most accurate and 30 gr. of 3F for the steel gongs where "10X" accuracy is not needed.