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Old October 30, 2013, 05:43 AM   #1
psychopuppy1
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measure black powder?

I know I seen someplace here, a chart of black powder weights. A conversion chart of sorts, for grains to ounces? Anybody know where that's at?
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Old October 30, 2013, 07:35 AM   #2
wogpotter
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You mean "grains" as in the unit of weight, or "Grains of powder"

Unit of weight is 7,000 grains = 1 Lb.
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Old October 30, 2013, 07:42 AM   #3
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437.5 grains to an oz.... there is 7000gr/per lb.....16oz/per lb.
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Old October 30, 2013, 12:56 PM   #4
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If you type "Convert 10 grains to ounces" into Google it will convert it for you.

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Old November 4, 2013, 09:34 AM   #5
psychopuppy1
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I was looking for powder grains! I reload with 48 grains of powder! But can I use the same scale to get 60 grains of black powder? Is the units of measurement (grains) the same for BP as modern powder?
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Old November 4, 2013, 10:19 AM   #6
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Yes. A grain is standard, 1/7000 of a pound Avoirdupois.
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Old November 4, 2013, 12:02 PM   #7
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Yes you can, but traditionally volume, not weight is used for B/P.

Its not just tradition BTW, some substitutes are a very different density from Black Powder its no small amount either in some cases its a 60% difference!
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Old November 4, 2013, 12:07 PM   #8
Claude Clay
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you apportion black powder by volume rather than weight.
black powder is hydroscopic.
so a certain volume (say 44-40, 44 cal bullet over 40 grains of BP) will weigh different wet or dry. yet it will pack the same punch.
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Old November 5, 2013, 07:46 AM   #9
psychopuppy1
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WOW! Jim, I I have no idea what that last word means! I have a powder measure, the tube on it is 'supposed to be' 90 grains! But I shoot a sabot,so I should only need 65 grains!
Can I use my Layman scale that is for reloading my 243 and measure out 65 grains of powder for my front loader?
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Old November 5, 2013, 08:34 AM   #10
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It just means it soaks up moisture from the air like a sponge.

Your measure seems to be volume, not weight based, yes? a fixed-size chamber you fill to meter with?

Heres a possible fix for you. this is a list of known case volumes, just pick the one you want from the list & collect brass from the range till you get a working volumetric meter!

Alternatively get a bigger case & reduce the length till you have the volume you want.

Case name / H2O capacity
.14 Hornet 12
.17 Hornet 14
.17 Rem 27
.204 Ruger 33
.22 Hornet 14
.22 K-Hornet 15
.218 Bee 18
.22 Rem Jet 18
.221 Rem 21
.222 Rem 27
.223 Rem 31
.222 Rem Mag 32
5.6x50R 34
.219 Zipper 34
.225 Win 41
.22-250 Rem 43
.220 Swift 48
.223 WSSM 53
.22-06 65
.22-15 Stevens 17
.22 Sav 35
6x47 33
6x52R Bret. 36
6x70R 39
.243 Win 54
6 Rem 55
.240 Wea Mag 65
6x62R 67
.236 USN 51
.240 Fl. N.E. 58
.25-20 WCF 19
.256 Win 22
.25-21 Stevens 25
.25-25 Stevens 29
.25-36 Marlin 37
.25-35 WCF 37
.25 Rem 42
.250 Sav 46
.257 Roberts 56
.25-06 Rem 66
.257 Wea Mag 84
6.5x70R 39
6.5 Jap. 48
6.5x52 Carcano 49
6.5x53R 49
6.5x54 M-S(.256) 50
.260 Rem 53
6.5x55 57
6.5x57(R) 58
6.5 Rem Mag 68
.264 Win Mag 82
.270 REN 16
.270 Win 68
.270 Wea 83
.28-30 Stevens 37
7-30 Waters 45
7x72R 54
7-08 Rem 56
7x57(R) Mauser 59
.284 Win 66
.280 Rem 67
7x65R 68
7 WSM 81
7 Rem Mag 84
.30 Carbine 21
.30-357 AeT 25
.30-30 45
.30 Rem 46
.303 Sav 48
.300 Sav 52
.307 Win 54
7.62 NATO 54
.308 Win 56
.30 Fl.NE Purdey 58
.30-40 U.S. 58
.30-06 U.S. 69
.300 H&H 86
.300 Win Mag 89
.30 Fl. H&H 90
.300 Wea Mag 99
.30-378 130
7.62x54R 64
.303 Brit 57
.375/303 W-R 62
.32-20 WCF 22
7.65 Mauser 58
8x72R 59
.32-40 Ballard 41
8x50R Lebel 66
8x57(R) Mauser 62
8-06 70
8 Rem Mag 98
.318 W-R 69
.333 Jeffery 86
.33 WCF 63
.338-06 70
.338 Win Mag 86
.340 Wea Mag 98
.338-378 132
.348 Win 75
9x57(R) Mauser 62
.357 Mag 27
.357 Max 34
.357/44 B&D 35
.400/350 Rigby 78
.350 ME Guide 2 49
.35 Rem 51
.356 Win 57
.358 Win 57
.35 WCF 69
.35 Whelen 71
.35 Greevy 72
.350 Rem Mag 73
.358 Norma Mag 88
9.3x57 Mauser 64
9.3x54R Finn. 65
9.3x72R 67
9.3x62 77
9.3x74R 82
.360 No.2 NE 111
.375 Win 49
.38-56 Win 62
.375 2½ N.E. 67
.375-06 73
.375 H&H 95
.375 Fl. Mag 97
.375 Ruger 100
.369 N.E. 102
.378 Wea Mag 136
.38-55 Ballard 52
.38-72 Win 74
.38-40 WCF 40
.400 Whelen 75
.405 Win 78
.400 Jeffery 117
.450/400 NE 3¼ 123
.416 Taylor 92
.416 Rem Mag 107
.416 Rigby 130
.416 Wea Mag 134
.423 OKH 77
.404 Jeffery 113
.44-40 WCF 40
.44 Spl 34
.44 Rem Mag 39
.444 Marlin 69
.45 Colt 42
.454 Casull 47
.45-70 U.S. 79
.450 Marlin 74
.45-90 2.4" 90
.458 Win Mag 94
.458 Lott 108
.450 3¼ N.E. 129
.460 Wea Mag 140
.465 N.E. 144
.470 N.E. 146
.475 3¼ N.E. 137
.50-110 109
.50 BMG 293
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Old November 5, 2013, 07:45 PM   #11
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BP.

The idea that BP should be measured out is an old one, beginning somewhere in the foggy mists of the past centuries.
While you may use a measure to load - I do - it is circumspect to know if that powder measure is really throwing 70 grains when it says 70 grains. Once you know, then volume load away.....but start by weighing.
Why?
Because not all powders have the same density.....ßome are fluffier than others.
Swiss BP has a reputation for being hotter than other powders. Is it really? Probably not. What it is is denser. When you drop 90 grains of Goex FFg and then use that measure set a 90 to load Swiss, you get 100 grains. It is hotter because there is more of it.
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