Rifle Brass Sorting Experiment - Part One

Weight-sorting brass has become a fairly common practice in the world of competitive rifle marksmen and precision reloaders. Similar to bullet sorting, this operation seems intuitive when the goal is maximizing consistency by minimizing variation.

Those who sort their brass by weight may believe that case weight is directly proportional to case capacity and a shortcut to the tedious process of measuring volume with a liquid. Personally, I haven’t seen much evidence to support this belief, so this experiment series will begin by exploring the relationship between case weight and case capacity.