Yes, I am using grams. With my scales I can get three decimal points when I use grams. That seemed to enable better separation into 7 distinct weight groups. The ammo sample that I have followed a normal bell curve distribution.
I was expecting that the heavier cartridges were those with the most powder and would shoot the fastest. So far, I only have the 25g ammo. I have not yet made time to go to the range and try this out. If it does tighten up the groups it will be worth the little bit of time needed to do this.
Irish
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