I have taken 60 pieces of unfired new winchester brass and weight sorted it out. i now have 9 individual piles of brass ranging from 3 to a pile to 12 pieces in a group. each pile represents brass that weighs within .5 grains of each other. Ok now what are you suppose to do? I am not benchrest shooting i am using them for hunting. Is this step really nessary for long range hunting? What am I missing. What is this suppose to do for me in terms of accuracy. when hunting you dont have time to sort thru shells in a cartridge belt.