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Old December 23, 2005, 08:45 AM   #1
Old Dragoon
Senior Member
 
Join Date: October 31, 2005
Location: The Republic of Californi
Posts: 581
Powder: Weight VS Volume

There was a discussion some time back about the weight of powder VS the Volume(BP powder measures).
I was loading some Unique Smokeless this last evening so I can shoot my "58's inside and not cause any problems.

This is what I discovered.
I zeroed my scales and weighed 4.5 Grains of Unique. Wanting to load several cartridges, I wanted an easy way to measure(volume) to load with. I used my BP measure, opened it all the way to catch all the powder, and then closed it with a 44 Colt case flat on top to find the exact volume of that load. Well it turns out that 4.5 Weighed Grains of Unique actually fill the measure to 10Grns volumetric measure in my BP measure. I have not weighed ten grains(Volume) of BP to see what that actually weighs. I was amazed that the difference was over 2 to 1.

WEIGHED MEASURE AND VOLUME MEASURE IS NOT THE SAME MEASURE!

So my advice is; be very careful if you weigh BP instead of using a volume measure, you can overload without realizing it. BP has always been measured by Volume. I will continue to measure my BP by Volume
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