Sorry to ask such a lame question, but here goes. I am trying to get this straight in my head.
BP is measured by weight in grains. Pyrodex is measured by volume, ie 65 grains of Pyrodex is the volume which would be filled by 65 grains of BP by weight - am I right so far?
Powder measures (such as Lee Perfect Powder Measure) work by dispensing volume? So basically I use the supplied chart to get a conversion factor for whatever powder I am using, and set the measure. Then I check the weight using scales to ensure I have set it (and done the maths) correctly.
Donald
Help with measuring powders
Moderator: dromia
Forum rules
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
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Watcher
Re: Help with measuring powders
Don't know about the Pyrodex but otherwise check the scales for weight and adjust the powder measure to get the right weight. In my old pistol days I used to 'dump' five charges and divide by five to get an average. This because there would always be a small variation and the charges were small; 3 - 5 grains normally.
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Doz
Re: Help with measuring powders
As far as I know both BP and the substitutes should be measured by volume not weight. I believe only nitro powders are measured by weight. Also worth noting that many powder measure manufacturers specifically recommend NOT using their measures with black powder but I don't know if that is related to differences in metering or the risk of static-initiated explosions!
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