Greetings All,
I did quite a bit on this a few years back which I wrote up in a couple of articles in NZ Guns. The Hodgdons data seemed to fit the powder I had well including my older AR2209 but the pressures were low. My current lot of AR2209 gave close to 100 fps more velocity than the older lot, equivalent to 2 more grains of powder. The 129, 130 grain projectiles seem to give decent velocity in the mid 2,800 fps range. Will look out my notes and post more later.
Regards Grandpamac.
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