5,760 grains in troy weight or 7,000 grains in avoirdupois weight
[DOC] [TLE] = PRECIOUS METAL WEIGHT TABLES = | eBay [PAR] 5760 grains = 1 troy pound 437.5 grains = 1 ounce avoirdupois 7000 grains = 1 
pound avoirdupois 1 grain = 0.0648 grams (0.06479891) 15.432 grains = 1... [DOC] [TLE] Weights - The University of Nottingham [PAR] A troy pound, at 5760 grains (about 373.24 grams in the Metric measurement), 
was lighter than an avoirdupois pound, at 7000 grains (about 453.59 grams).