The measurement system for reloaders is avoirdupois under which there are 7000 grains per pound (16 oz X 437.5). In the Troy system - which is used for measuring precious metals like gold - there are 5760 grains (12 oz X 480). That`s why under the trick question we were presented in elementary school, an ounce of gold weighs more than an ounce of feathers, but a pound of feathers weighs more than a pound of gold. :eek: