Determine what you are reloading for as your first step. If you are going on a trophy hunt with the potential for one shot, use the Match primers which will give you a lower velociy deviation resulting in minimal cartrige caused elevation changes. If you are shooing close range white tails, "minute of buck" ammoo from run of the mill components will do. I strongly urge you to shoot a three shot group in ideal conditions with your projected loads to see that are your groups before going afield. Match primers give more consistant results Overbore /ubbthreads/images/graemlins/blush.gif