The result of your conversion between grain/quart [US] and grain/ounce [UK] appears here
To convert between Grain/quart [US] and Grain/ounce [UK] you have to do the following:
First divide ((0.45359237/16)*(192/175)/480)/(0.0037854118/4) / ((0.45359237/16)*(192/175)/480)/(0.00454609/160) = 0.03002375
Then multiply the amount of Grain/quart [US] you want to convert to Grain/ounce [UK], use the chart below to guide you.
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