The 243 cases are in a wide, peaky, skewed Bell curve distribution; the mode is 171.3gn. Can you see the case that is fifth from the end of the long column? Even the best cases come with dings.
The spread for the 6.5x55 cases is not as wide, but isn't a neat Bell curve either. The mode for the 6.5 cases is 179.2 gn. It's an unusual distribution, which almost suggests the cases are from two batches.
I need a volunteer to do this with a thousand cases, to see if the curves get neater. :-)
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Lapua 243 Winchester cases, sorted into 0.1 grain groupings. Mode = 171.3gn.
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| Lapua 6.5x55 cases, sorted into 0.1 grain groupings. Mode = 179.2gn. |
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Regards, Rick.