Thread: Hodgdon /ADI BM8208 data

Greetings all,
I have been scratching my head over some chronographed loads in my .223 using BM8208. I did some comparisons recently in my .308 using BM8208 and AR2206H and others. Velocities were very close to that predicted once charge and barrel lengths were allowed for. More recently I have been sorting out some loads using the 60 grain VMax in my .223. The AR2206H load was very close to predicted, 3,140 fps actual v 3,124 fps predicted but the BM8208 was way of with only 2,940 fps actual v 3,107 fps predicted. Looking at some other data predicted 3,011 fps for the same load.
So the question is has anyone found significant differences in the speed of BM8208 or does the Hodgdon /ADI data just have a glitch?
The .308 and .223 loads used different lots of BM8208 so I should reshoot the load with my powder but would appreciate your thoughts and observations.
Thanks and regards Grandpamac.