4.1gr Unique with 158gr TC (gm hard cast) only shooting it on a 20m indoor range with a 475 foot pound limit, (its kicking out something like 250flb, whats the point of loading it up to nere the range limit and deafening every one when the paper target your trying to kill is only 20m away) 4.1 of Unique and a 158gr head gives a bit of a kick and a reasonably quite bang, quieter than the factory cowboy action loads. as a previous poster said, semi wadcutters don't load to well from underlevers