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How much FFFg powder fits within this short cylinder?
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This question appears to fit comfortably into no subforum. But since I ask about black powder and a short cylindrical shape Black Powder Cartridge Rifles seems to be closer than any other. How much FFFg powder can be put into a .310-inch cylinder that is .125-inch deep?


It's so simple to be wise. Just think of something stupid to say and then don't say it. Sam Levinson
 
Posts: 1496 | Location: Seeley Lake | Registered: 21 November 2007Reply With QuoteReport This Post
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The volume of your cylinder is pi-R-squared-times-depth = 3.1416 x .155 x .155 x .125 = 0.0094346 cubic inch

From the internet: FFFg Goex density = 238 grains per cubic inch, trusted but not verified coffee

238 x .0094346 = 2.25 grains of powder

Is that for a .31-cal wildcat miniature BPCR?
 
Posts: 28032 | Location: KY | Registered: 09 December 2001Reply With QuoteReport This Post
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Very miniature.
You can compress black powder you know... And it burns better if you do.
What are you doing; this can't be a cartridge, obviously.
 
Posts: 17007 | Location: USA | Registered: 02 August 2009Reply With QuoteReport This Post
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Doing a tiny cylinder like this, an eighth-inch long 31-caliber volume, suggests what difference a longer neck might make on a cartridge ...
But BP and only .31-caliber?
The suspense is killing me. Wink
 
Posts: 28032 | Location: KY | Registered: 09 December 2001Reply With QuoteReport This Post
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It sounds like a gas check for a lead bullet.




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Posts: 10900 | Location: North of the Columbia | Registered: 28 April 2008Reply With QuoteReport This Post
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Yeah, inquiring minds want to know,
But I can tell you that, this much FFFG is not enough to blow the brains out of a gnat.
 
Posts: 17007 | Location: USA | Registered: 02 August 2009Reply With QuoteReport This Post
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