From the first sentence: 180 grains converts to 11.6638 grams. 3/8 troy ounces converts to 11.6638 grams. I've spent a lot of time trying to find out where "(11.3398038 grams)" comes from. This needs to be justified, at least in the talk. Dave C (talk) 03:20, 8 February 2019 (UTC)[reply]
