The Firing Line Forums - View Single Post - What difference does .1 or .2-.3 gr make?

Edward429451 · August 16, 2011, 09:48 PM

.5 could make all the difference in the world depending on what you're loading and what powder. Some powders meter better than other powders. A simple thing that I do to help ensure consistency and safety in measuring powders is to weigh 10 sample charges when I open the can for the first time, and record the weights and target weight. Plug it into the Chrony formulas and I have the average deviation from average weight and the extreme spread of weight variation.

I tape this to the can of powder and then when I am using that powder I know what to expect in variations. Obviously, the closer to max the more attention is paid to it.

August 16, 2011, 09:48 PM	#5
Edward429451 Junior member Join Date: November 12, 2000 Location: Colorado Springs, Colorado Posts: 9,494	.5 could make all the difference in the world depending on what you're loading and what powder. Some powders meter better than other powders. A simple thing that I do to help ensure consistency and safety in measuring powders is to weigh 10 sample charges when I open the can for the first time, and record the weights and target weight. Plug it into the Chrony formulas and I have the average deviation from average weight and the extreme spread of weight variation. I tape this to the can of powder and then when I am using that powder I know what to expect in variations. Obviously, the closer to max the more attention is paid to it.