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
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Grains by weight or volume???
- Thread starter MTFURY
- Start date
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A question for the old timers and experts.
Ok, so I'm out in the bush and I only have the following items with me.
1) A muzzleloader which the manufacturer says needs a load of 30 grains of black powder.
2) I have REAL black powder with me, not a substitute.
3) I have a scale with me.
4) I have some drill bits to make a powder measure out of a stick.
What do I do next? Is it as simple as throwing the black powder on the scale until it measures 30 grains and then fashioning a powder measure out of a stick with the drill bit until it can hold that amount of powder flush with the tippy top of the measure?
Ok, so I'm out in the bush and I only have the following items with me.
1) A muzzleloader which the manufacturer says needs a load of 30 grains of black powder.
2) I have REAL black powder with me, not a substitute.
3) I have a scale with me.
4) I have some drill bits to make a powder measure out of a stick.
What do I do next? Is it as simple as throwing the black powder on the scale until it measures 30 grains and then fashioning a powder measure out of a stick with the drill bit until it can hold that amount of powder flush with the tippy top of the measure?
Exactly!
Using a scale is fine. Lots of folks are seriously confused at the concept of weight v volume when measuring but here's the skinny-
You set by weight, measure by volume for any given powder. Change the powder, volume may stay the same, but weight will change. Even modern ammo is made the same way. I make all my competition ammo by doing my testing based on weight. Then I set my powder measure (it measures by volume) and make my ammo, all of which was measured by volume.
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I guess I am to anal? I weighed all my loads for modern rifles but volume for M.L.s
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Sam Fadala said five grains plus or minus is practically undetectable? I may not have quoted him exactly but the meaning is the same. As you mention black powder doesn't burn the same everytime.
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I was quoting Fadala. I do know in mine the sweet spot for my .54 cal. rifles is 80 grains. I can go up to 85 grains and really can't tell much difference at 90 grains it starts to widen my groups more than I desire. but 80 grains is dead on.
I know most people would not be able to tell a difference but people that have a lot of experience can see what most don't.
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When I use a volumetric drop to drop black powder, I do it the opposite of that.
I set the volumetric dropper and then measure the output on the scale. I then tweak the volumetric dropper until it drops the correct weight.
Be aware that the volumetric dropper is subject to changes in powder.
For example, the new Goex powder is less dense than the old Goex powder. Won't affect you if you drop by weight but if you were dropping by volume you will be getting less bang with the new Goex powder.
