I sorted 100 Lapua .223 cases and they range from 95.3-96.2 grains (by weight, not volume) I separated them--50 at 95.3-95.7, and 50 at 95.8-96.2 grains. Am I being too fussy? is the 9/10 of a grain difference in weight with the whole batch so small...that it won't really MAKE a difference? What is the general rule for case weight difference-in a batch of brass-that you sort, for say...small cases, med cases, and larger cases--like 7 Rem Mag? Thanks!