There was plenty of data from Seafire on Bluedot with .223, but I couldn't get any at the time--Thanks Obama--
So I tryed STEEL first, and it worked fine in .223, and .243. Then I tryed it in 17Hornet.
I like these middle powders cause they are "Fluffy" and take up alot of the case space/high volume.
Finally got some Bluedot and ran it in 17hornet above. Was a little surprised at the lack of velocity with equal weight loads compared to slower burning STEEL. But it worked well. And I had run out of Rem 7.5 primers, so that could have also influenced the performance.
I like to think that the fluffy powder is safer to load, because of the fill ratio. With out my notes in front of me, I do remember that a full case of STEEL is about 8.5 grains to the very top of the mouth 17hornet. Blue Dot was more.
I plan on testing more Bluedot with these same componets, cause there is a little more room past 6.5grains that looks doable.
Also will run tests with Bluedot at 20grain Vmax's too
No suppressor yet! But 4.5 -5.5 grains of powder is same sound as 17HMR.