The result of your conversion between grain/ounce [UK] and ounce/gallon [UK] appears here
To convert between Grain/ounce [UK] and Ounce/gallon [UK] you have to do the following:
First divide ((0.45359237/16)*(192/175)/480)/(0.00454609/160) / (0.45359237/16)/0.00454609 = 0.36571429
Then multiply the amount of Grain/ounce [UK] you want to convert to Ounce/gallon [UK], use the chart below to guide you.
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