I wish I had found that chart 15 years agoHere you go @Col. Batguano
BLACK POWDER & SUBSTITUTES Volume to Weight Conversion Chart December 2012 American Jim Jim Hodgdon Hodgdon Goex Pioneer Shockey's Shockey's Triple Triple vol. vol. Goex Express Powder Gold Gold Seven Seven Pyrodex cc gr. FFFg FFg FFFg FFg FFFg FFg FFFg P 6.67 100 101.1 104.6 78.4 88.3 83.0 77.2 81.4 76.0 6.33 95 96.0 99.4 74.5 83.9 78.9 73.3 77.3 72.2 6.00 90 91.0 94.2 70.6 79.5 74.7 69.5 73.3 68.4 5.67 85 85.9 88.9 66.7 75.1 70.6 65.6 69.2 64.6 5.33 80 80.9 83.7 62.7 70.6 66.4 61.8 65.1 60.8 5.00 75 75.8 78.5 58.8 66.2 62.3 57.9 61.1 57.0 4.67 70 70.7 73.2 54.9 61.8 58.1 54.0 57.0 53.2 4.33 65 65.7 68.0 51.0 57.4 54.0 50.2 52.9 49.4 4.00 60 60.6 62.8 47.1 53.0 49.8 46.3 48.8 45.6 3.67 55 55.6 57.5 43.1 48.6 45.7 42.5 44.8 41.8 3.33 50 50.5 52.3 39.2 44.2 41.5 38.6 40.7 38.0 3.27 49 49.5 51.3 38.4 43.3 40.7 37.8 39.9 37.2 3.20 48 48.5 50.2 37.6 42.4 39.9 37.1 39.1 36.5 3.13 47 47.5 49.2 36.9 41.5 39.0 36.3 38.3 35.7 3.07 46 46.5 48.1 36.1 40.6 38.2 35.5 37.4 34.9 3.00 45 45.5 47.1 35.3 39.7 37.4 34.7 36.6 34.2 2.93 44 44.5 46.0 34.5 38.9 36.5 34.0 35.8 33.4 2.87 43 43.5 45.0 33.7 38.0 35.7 33.2 35.0 32.7 2.80 42 42.4 43.9 32.9 37.1 34.9 32.4 34.2 31.9 2.73 41 41.4 42.9 32.2 36.2 34.0 31.7 33.4 31.1 2.67 40 40.4 41.9 31.4 35.3 33.2 30.9 32.6 30.4 2.60 39 39.4 40.8 30.6 34.4 32.4 30.1 31.7 29.6 2.53 38 38.4 39.8 29.8 33.6 31.6 29.3 30.9 28.9 2.47 37 37.4 38.7 29.0 32.7 30.7 28.6 30.1 28.1 2.40 36 36.4 37.7 28.2 31.8 29.9 27.8 29.3 27.3 2.33 35 35.4 36.6 27.4 30.9 29.1 27.0 28.5 26.6 2.27 34 34.4 35.6 26.7 30.0 28.2 26.2 27.7 25.8 2.20 33 33.4 34.5 25.9 29.1 27.4 25.5 26.9 25.1 2.13 32 32.3 33.5 25.1 28.3 26.6 24.7 26.0 24.3 2.07 31 31.3 32.4 24.3 27.4 25.7 23.9 25.2 23.5 2.00 30 30.3 31.4 23.5 26.5 24.9 23.2 24.4 22.8 1.93 29 29.3 30.3 22.7 25.6 24.1 22.4 23.6 22.0 1.87 28 28.3 29.3 22.0 24.7 23.2 21.6 22.8 21.3 1.80 27 27.3 28.3 21.2 23.8 22.4 20.8 22.0 20.5 1.73 26 26.3 27.2 20.4 23.0 21.6 20.1 21.2 19.8 1.67 25 25.3 26.2 19.6 22.1 20.8 19.3 20.4 19.0 1.60 24 24.3 25.1 18.8 21.2 19.9 18.5 19.5 18.2 1.53 23 23.2 24.1 18.0 20.3 19.1 17.8 18.7 17.5 1.47 22 22.2 23.0 17.3 19.4 18.3 17.0 17.9 16.7 1.40 21 21.2 22.0 16.5 18.5 17.4 16.2 17.1 16.0 1.33 20 20.2 20.9 15.7 17.7 16.6 15.4 16.3 15.2 1.27 19 19.2 19.9 14.9 16.8 15.8 14.7 15.5 14.4 1.20 18 18.2 18.8 14.1 15.9 14.9 13.9 14.7 13.7 1.13 17 17.2 17.8 13.3 15.0 14.1 13.1 13.8 12.9 1.07 16 16.2 16.7 12.5 14.1 13.3 12.4 13.0 12.2 1.00 15 15.2 15.7 11.8 13.2 12.5 11.6 12.2 11.4 0.93 14 14.1 14.6 11.0 12.4 11.6 10.8 11.4 10.6 0.87 13 13.1 13.6 10.2 11.5 10.8 10.0 10.6 9.9 0.80 12 12.1 12.6 9.4 10.6 10.0 9.3 9.8 9.1 0.73 11 11.1 11.5 8.6 9.7 9.1 8.5 9.0 8.4 0.67 10 10.1 10.5 7.8 8.8 8.3 7.7 8.1 7.6 0.60 9 9.1 9.4 7.1 7.9 7.5 6.9 7.3 6.8 0.53 8 8.1 8.4 6.3 7.1 6.6 6.2 6.5 6.1 0.47 7 7.1 7.3 5.5 6.2 5.8 5.4 5.7 5.3 0.40 6 6.1 6.3 4.7 5.3 5.0 4.6 4.9 4.6 0.33 5 5.1 5.2 3.9 4.4 4.2 3.9 4.1 3.8 0.27 4 4.0 4.2 3.1 3.5 3.3 3.1 3.3 3.0 0.20 3 3.0 3.1 2.4 2.6 2.5 2.3 2.4 2.3 0.13 2 2.0 2.1 1.6 1.8 1.7 1.5 1.6 1.5 0.07 1 1.0 1.0 0.8 0.9 0.8 0.8 0.8 0.8 This is a revision of the chart I put on Captain Baylor's Ranger Camp in 2005. Then I used an adjustable measure to measure 100 gr. FFg by weight then use that measure to produce the same volume of Black Powder Substitutes. This time I started with a 4.0 cc. Lyman dipper and weighed 5 samples of each powder, then averaged. Black Powder Loads are normally measured in volume. 15 gr. vol. is 1.0 cc. 1.0 cc. weighs approximately 15 gr. This chart converts to weights of equivalent volumes. Weights were rounded to the nearest .1 gr. Duplicating results closer than the nearest grain using BP and subs is difficult and unnecessary. The old chart is still on the site at : Black Powder Conversions Your mileage may vary, but Black Powder Ain't Brain surgery Ounces to Grains--useful for adjusting shot charges using a powder scale that measures in grains. Ounces to Grains OUNCE GRAINS 16 7000 1 438 1.125 492 1.25 547 1.275 558 1.3 569 1.325 580 1.35 591 1.375 602 1.5 656 Drams to Gr. BP Dram Gr. BP 1 27.3 2 54.7 2.25 61.5 2.5 68.4 2.75 75.2 3 82.0 3.25 88.9 3.5 88.9 3.75 102.5