Greetings @csmiffy,
If that was the one where the shooter was honest enough to post about it I remember it. From memory it was one of the bigger 6.5's. Some of the data for the calibre is all over the map with higher velocities with smaller charges than you would expect from the later stuff. I work a bit with the 6.5-06 and some of my older data has substantially heavier charges for the same or less velocity. I do wonder if the later US barrels are somewhat tighter than previously. The yanks do have a history of having to re invent things, sometimes with disastrous results.
This is the reason I always work up loads with the chronograph. Higher than expected velocity is almost always in indication of higher pressure.
Regards Grandpamac.
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