Not really. You can not alter rimfire ammo used in matches such as ARA or ABRA. Wind blows those little 40g pills all over the place at the slower speeds. Accuracy is determined by "lot" number, not by powder charge, seating depth, etc., as is done with CF rounds. Either you gun "likes" the ammo or it does not.Isn’t that basically the same thing as a .223 Remington?