Less than one ounce, 0.31 to be exact or 8.79 grams, Black powder is generally measured by volume rather than weight for muzzleloaders.
There are approximately 0.0041 ounces in 3 grains.
should be 0.87477 grams (1 gram = .0647989 grains)
90 grains is approximately 0.185 ounces
2,100 grains is 4.375 troy ounces.
555.0 grains equates to 1.156 troy ounces.
There are approximately 635.8 grains in 1.125 ounces.
1 pound equates to about 7,000gr
Seven ounces = 3,062.5 grains.
According to Google Calculator, 1.25 ounces of weight is equivalent to 546.875 grains.
2.0833 troy ounces next time just google "sterling silver 1000 grains"
4 crackers
There are approximately 71.5 grains in one troy ounce. Therefore, 1,000 grains is equivalent to about 14 troy ounces of silver.