Loads per Pound
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A pound of powder weighs 7000 grns...if you shoot 100grn loads, you'll get 70 shots...50grn loads=140 shots, etc.
Granulation doesn't matter...your dealing in volume (grain) measurements in both cases (with the powder measure and the 7000grns in the can)
Granulation doesn't matter...your dealing in volume (grain) measurements in both cases (with the powder measure and the 7000grns in the can)
Guest
There is no guess work invovled at all.
Just follow the simple formula. It's exact IF you don't spill much powder.
The little .32 at 10 grains for plinking gives 700 shots per pound.
Good reason to get a .32. :thumbsup:
Just follow the simple formula. It's exact IF you don't spill much powder.
The little .32 at 10 grains for plinking gives 700 shots per pound.
Good reason to get a .32. :thumbsup:
I think there is a difference between the actual weight of a fixed volume of FFg and FFFg so the actual number of shots you get from a pound of powder when using your powder measure might be a little different, depending on the granulation.
When all is said and done though, the total number of shots you get out of a pound of powder IMO won't vary enough to worry about.
If you really want an exact answer and if you have access to a good loading scale use your powder measure and throw a few "loads" into the scales pan and divide the weight by the number of throws you made. :results:
You may be suprised at the answer.
Most of the commercial powder measures I have are 2 to 4 grains off of what they are supposed to throw.
Fortunatly black powder is rather weak so a few grains won't effect accuracy too much and it won't cause unsafe loads, even if it is measuring more than you thought it was.
When all is said and done though, the total number of shots you get out of a pound of powder IMO won't vary enough to worry about.
If you really want an exact answer and if you have access to a good loading scale use your powder measure and throw a few "loads" into the scales pan and divide the weight by the number of throws you made. :results:
You may be suprised at the answer.
Most of the commercial powder measures I have are 2 to 4 grains off of what they are supposed to throw.
Fortunatly black powder is rather weak so a few grains won't effect accuracy too much and it won't cause unsafe loads, even if it is measuring more than you thought it was.
Guest
powder is measured and sold by an antiquated weight called "avoirdupois".( look in the back of a good dictionary).
The interesting thing about "avoirdupios" measure is that it is specific to "dry powders other than","drugs, grains, precious metal or gems".
Another interesting thing about that measure is that 7000 grains = 1 pound... 1 pound of 2f powder = 7000 grns.
Now enter "marketing" (old as dirt). Here's my point,,will you get 7000 grns by volume of 3f as you will 2f? Or will you get just 1 pound?
(huh?,,think)
All of our "store bought" measures are set too 2f granulation, as due to "avoirdupios" powder measure.
so that's why all of the powder cans you buy say,"or equvilant"! on the side if it tells you how much powder to use!! They have too by law "equate" too, 2f avoirdupios weight.(by volume)
2f BP = 7000 grains = 1 pound
3f BP x 1 pound = < than 7000 grains,,get it??
Does that mean you get more powder per pound using 3f?? no, you just get more powder "in volume" per measure.
The interesting thing about "avoirdupios" measure is that it is specific to "dry powders other than","drugs, grains, precious metal or gems".
Another interesting thing about that measure is that 7000 grains = 1 pound... 1 pound of 2f powder = 7000 grns.
Now enter "marketing" (old as dirt). Here's my point,,will you get 7000 grns by volume of 3f as you will 2f? Or will you get just 1 pound?
(huh?,,think)
All of our "store bought" measures are set too 2f granulation, as due to "avoirdupios" powder measure.
so that's why all of the powder cans you buy say,"or equvilant"! on the side if it tells you how much powder to use!! They have too by law "equate" too, 2f avoirdupios weight.(by volume)
2f BP = 7000 grains = 1 pound
3f BP x 1 pound = < than 7000 grains,,get it??
Does that mean you get more powder per pound using 3f?? no, you just get more powder "in volume" per measure.
No, I believe he's saying it takes more individual grains of FFFg to make the same volume of FFg, remember that FFFg is smaller than FFg in size, so the grains will be finer...
This is why a pound of FFFFg will "LOOK" fuller than a pound of FFg in the same size cans...
Guest
no,
I'm saying 1 pound of 3f has less volume than 1 pound of 2f.
A 7000 grn "by volume" can of 2f should/will weigh 1 pound.
2f powder is/was the standard.
but you'll not get 7000 grns "by volume" of 3f..with the same measure. You will get 1 pound fer cost,,but you'll get more "boom" per measure,,yet fewer "boom's" per pound using 3f.
I'm not saying anything about 2f-3f powders,,I'm just trying to explain powder measure.
Nobody will get more shot's per pound using the same "volume" 2f vs.3f..(less even if I should add)
to be honest I'm not even sure what "weight" of 2f I'm using any more,,( I guess I could weigh a few charges)I just cut the antler back to hold enough powder to shoot good,(it's right around 75-85 2f by volume).
:sorry: didn't mean ta step on no toes,, but 7000grns of 2f is(sposta be) 1 pound of avoirdupios weight.
Go to the store and buy a pound of 3f..go to the store and buy a pound of 1f,, the box of 1f will be bigger than the box of 3f,, :sorry: roundballeace:?
I'm saying 1 pound of 3f has less volume than 1 pound of 2f.
A 7000 grn "by volume" can of 2f should/will weigh 1 pound.
2f powder is/was the standard.
but you'll not get 7000 grns "by volume" of 3f..with the same measure. You will get 1 pound fer cost,,but you'll get more "boom" per measure,,yet fewer "boom's" per pound using 3f.
I'm not saying anything about 2f-3f powders,,I'm just trying to explain powder measure.
Nobody will get more shot's per pound using the same "volume" 2f vs.3f..(less even if I should add)
to be honest I'm not even sure what "weight" of 2f I'm using any more,,( I guess I could weigh a few charges)I just cut the antler back to hold enough powder to shoot good,(it's right around 75-85 2f by volume).
:sorry: didn't mean ta step on no toes,, but 7000grns of 2f is(sposta be) 1 pound of avoirdupios weight.
Go to the store and buy a pound of 3f..go to the store and buy a pound of 1f,, the box of 1f will be bigger than the box of 3f,, :sorry: roundball
eace:?Guest
:hmm: ok,,
We are buying powder by weight (1 pound is 454 grams is 7000 grains) but we measure it by volume. Our volume measure is the amount of space that 1 grain by weight of water occupies. There was a thread a week or so ago where one of the participants measured the weight of a 100 grain(volume) charge of Pyrodex RS and found it to weigh 65.7 grains(weight) and of Triple Seven finding it to weigh 73 grains. I was curious and weighed some Goex FFFg and found that a 100 grain(volume) charge weighed 96.7 grains. Using these numbers you would get 72 100grain (volume) charges of Goex, 95 charges of Triple Seven and 106 charges of Pyrodex out one pound of each.
I would expect that a 100 grain(volume) charge of 4F would weigh more that 3F would weigh more that 2F because the smaller grains pack tighter. Since I don't use the coarser granulations, I will let someone else weigh them and hopefully post the results.
I would expect that a 100 grain(volume) charge of 4F would weigh more that 3F would weigh more that 2F because the smaller grains pack tighter. Since I don't use the coarser granulations, I will let someone else weigh them and hopefully post the results.
robinghewitt
62 Cal.
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I'm not sure about that. If you saw a close up picture of some powder or shot, without anything to give you the scale; could you tell what size it was simply because smaller sizes pack closer? I think they might all look the same.
:m2c:
:agree:
By jove, Plinker gets the gold star!
I was answering a question saying a 100grn setting on a volume powder measure would throw 100grns of Goex, regardless if 3F or 2F, because 100grns volume is 100grns volume...and that's correct.
And from my experience with Goex, I went on to say that seventy 100grn shots could be had in a pound by simply dividing 100 into 7000 grains, not allowing for the slight difference between "grains weight" and "grains volume"...and that's not precisely correct across the board as Plinker points out.
If you do the math, there is a slight difference (ie: Goex = 72 shots instead of 70) because of the volume vs. weight type measurement incompatabilities...and potentially greater differences with other powders that may have a lighter or heavier weight to volume ratio.
PS:
However, since I'll continue to use Goex as my black powder of choice, I'll continue to make my quick reference planning calculations by dividing volumetric powder charges into 7000 grains weight, because in practical terms, the difference is really insignificant for that purpose.
By jove, Plinker gets the gold star!
I was answering a question saying a 100grn setting on a volume powder measure would throw 100grns of Goex, regardless if 3F or 2F, because 100grns volume is 100grns volume...and that's correct.
And from my experience with Goex, I went on to say that seventy 100grn shots could be had in a pound by simply dividing 100 into 7000 grains, not allowing for the slight difference between "grains weight" and "grains volume"...and that's not precisely correct across the board as Plinker points out.
If you do the math, there is a slight difference (ie: Goex = 72 shots instead of 70) because of the volume vs. weight type measurement incompatabilities...and potentially greater differences with other powders that may have a lighter or heavier weight to volume ratio.
PS:
However, since I'll continue to use Goex as my black powder of choice, I'll continue to make my quick reference planning calculations by dividing volumetric powder charges into 7000 grains weight, because in practical terms, the difference is really insignificant for that purpose.
I am still counting out one at a time 30gr. of 3F Swiss to see how many I REALLY get from a lb. Do you suppose Schuetzen or Goex is different enough to make a difference in the shots I get? Of course I need a little more Schuetzen or Goex to get the same FPS that I get from Swiss. This is going to take awhile! :crackup: 87, 89, 91, er 90. Aw shoot, now I have to start over! :cry:
...and remember, just counting full grains won't give you the ultimate precision I know you're after...you'll have to sock the powder sample first, then use smaller tweezers to count the fines too, followed by the fines-to-full-grain conversion formula, and aggragate that additional grain count into your calculations, etc.
This will be difficult with swiss, but much easier with Elephant...just open a new can of Elephant, pour the contents out on a piece of paper...then count both grains.
This will be difficult with swiss, but much easier with Elephant...just open a new can of Elephant, pour the contents out on a piece of paper...then count both grains.
You got 2 seperate grains with your can of Elephant? Lucky you. ::
Guest
OK, now I know for sure!!
You guys have WAY TOO MUCH TIME ON YOUR HANDS!!!
:imo:
You guys have WAY TOO MUCH TIME ON YOUR HANDS!!!
:imo:
Guest
O.K. tx...you started this! :curse:
Just when a guy thinks it's all down pat you fellas come along and screw it all up.
The ONLY was to tell is to COUNT the grains in a pound of the SAME lot of 2fg and 4fg and take an average of 10 pounds of each.
Lemme see, where was I.......oh., yeh,
1123, 1124, 1125, 1126................. :snore: :snore:
Just when a guy thinks it's all down pat you fellas come along and screw it all up.
The ONLY was to tell is to COUNT the grains in a pound of the SAME lot of 2fg and 4fg and take an average of 10 pounds of each.
Lemme see, where was I.......oh., yeh,
1123, 1124, 1125, 1126................. :snore: :snore:
