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Hunting & Fishing
Blackhorn 209 questions (Muzzleloader)
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<blockquote data-quote="dennishoddy" data-source="post: 1274970" data-attributes="member: 5412"><p>Never measure BP by weight.</p><p>Always do a volumetric weight. Different consistancies of BP and its substitues = different weights.</p><p>For instance: black powder is sold and specified using two parameters, its weight and the size of the granules. </p><p></p><p>Here is a little something I gleaned for another site. It refers to a cannon, but is applicable in a smaller "shoulder fired cannon".<img src="/images/smilies/biggrin.png" class="smilie" loading="lazy" alt=":D" title="Big Grin :D" data-shortname=":D" /></p><p></p><p>The granule size making up the powder is referred to as the fg number. It correlates to the size of the screen mesh which it falls through for sorting. Ranges are "cannon" (very course), fg (1fg), ffg (2fg), fffg (3fg), and ffffg (4fg) which is very fine. Small particles, higher fg numbers burn much faster. The resulting explosion from very fine powder can cause a cannon barrel to explode. The fg grade (1f) is the correct size for small cannon however ffg (2f) is ok.</p></blockquote><p></p>
[QUOTE="dennishoddy, post: 1274970, member: 5412"] Never measure BP by weight. Always do a volumetric weight. Different consistancies of BP and its substitues = different weights. For instance: black powder is sold and specified using two parameters, its weight and the size of the granules. Here is a little something I gleaned for another site. It refers to a cannon, but is applicable in a smaller "shoulder fired cannon".:D The granule size making up the powder is referred to as the fg number. It correlates to the size of the screen mesh which it falls through for sorting. Ranges are "cannon" (very course), fg (1fg), ffg (2fg), fffg (3fg), and ffffg (4fg) which is very fine. Small particles, higher fg numbers burn much faster. The resulting explosion from very fine powder can cause a cannon barrel to explode. The fg grade (1f) is the correct size for small cannon however ffg (2f) is ok. [/QUOTE]
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