Hey Fred M; I'm about to start trying the Rel. series of powder with this 25 06. I know you were nearly drove crazy trying to get 3/8" groups with your's,and so am I, so did any particular show great promise. I'm using a 18 pr. scope with bipod in the front and a sand bag in the rear,and its rock steady( maybe .020 " movement in the crosshairs) I'm useing the Sierra 87 gr sp. mostly be cause they show the most promise. Digger