I've tried IMR's Blue, using Alliant's Blue Dot load data I developed...
I didn't find IMR's Blue, for this kind of application, as consistent and predictable
as Blue Dot...
Velocities were erratic....which I translated as pressures spiking some, or depressing
at other times..
and that was playing with it, in the 223, 22.250, 243, 260 and 30/06....
in the 223 for example, 13.5 grains with a 55 grain bullet is what I recommend as max
with Blue Dot...
anything over 10 grains with a 55 grainer with IMR Blue, is all I will personally use...
when the pound I picked up of IMR Blue is gone... I won't buy any more of it, as it
doesn't fit any of my needs...
others may have different experiences than mine...but overall I wasn't impressed...
