What weighs more, an ounce of shot, or an ounce of gold? Yes, a trick question, but not in the way most people think.
As you well know EE, an ounce of gold weighs more!
Shot, being made of lead, is measured in avoirdupois ounces, and gold, being a precious metal, is measured in troy ounces. An avoirdupois ounce has 437.5 grains to the ounce while the troy ounce has 480 grains to the ounce. Thus a troy ounce is heavier than an avoirdupois ounce.
But a pound of shot is heavier than a pound of gold because an avoirdupois pound has 16 ounces while a troy pound has only 12. So a pound of lead weighs 7,000 grains while a pound of gold weighs 5,760 grains.