Speed Anomoly!!

[Bowland blades]

The Vihtavuori data is simply not worth the paper it is printed on. No use quarrelling about the accuracy of scales in this case either.

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NO DATA from anything can be trusted as not even all bores will shoot the same ammo at the same speed exactly . What you can do is get somewhere close to compare a few loads ( in theory form ) . Too many unknown factors at play !