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Old October 9, 2012, 08:00 PM   #24
B.L.E.
Senior Member
 
Join Date: December 20, 2008
Location: Somewhere on the Southern shore of Lake Travis, TX
Posts: 2,008
Just to satisfy my curiosity, weighed some powder charges I measured to test how repeatable my measuring techniques were.

The first test, the powder measure shown in post # 21, plunger set to 80 grains and measuring Swiss FFg.

77.1
77.8
77.9
77.7
77.1
77.3
77.2
77.4
77.2
77.6

Average 77.43
SD .29833

From a measuring powder flask with a 20 grain spout metering Schuetzen FFFg.

21.1
21.0
20.3
21.2
20.7
20.8
20.9
20.6
20.8
20.6

Average 20.8
SD .26667

Finally, from a Lee crank style powder measure mounted on a stand to take to shoots. Measure set to 1.5cc volume. Schuetzen FFFg. Handle up for about one second to fill, down to dump into an empty rifle case and three light raps with my fingers to make sure no powder sticks to the plastic drop tube.

20.7
20.6
20.6
20.6
20.7
20.8
20.7
20.8
20.8
20.7

Average 20.7
SD .08165
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