Here's another way to look at the same relationships between the weights and the volumes of different powders -- their respective bulk densities.<P>I've just compiled a list of how many grains of each powder (105 powders, all told) would occupy the net capacity of a certain case (.220 Howell) with a certain bullet (75-grain Hornady A-Max) and an over-all loaded length of 3.00 inches -- the space occupied by a tad more than 56 grains of water.<P>The range is from 23.9 grains of the least-dense powder to 56.9 grains of the densest powder.<P>IOW, equal-size piles of powder x and powder y weigh 23.9 and 56.9 grains, respectively.
