My black powder space in my gun closet is getting clogged with boxes of different balls of multiple calibers whose diameters for calibers seem to make no sense. For example, I have .44 caliber balls of 0.454 diameter for my cap 'n ball revolvers, and .45 caliber balls of 0.445 diameter for my flintlock rifles. Not to mention I have .36 caliber balls of 0.375 diameter for my 1962 Colt revolver and today got a box of .36 caliber balls of 0.350 diameter for my Le Page pistol. Confusing, to say the least, and doesn't seem logical. If anyone has a link to a good article or video that explains how this all came about and reasons for it, I'm all for some climbing the learning curve. Thanks!!