BP Conversion Sheet
From pyroGuide.wiki
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 : | ||||||||||||
http://www.curtrich.com/BPConversionSheet2005.htm | ||||||||||||
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 |