I tried it today out of a short (18") barrel and it shot pretty decent .4s consistently and was a little faster than the new prime but the prime was shooting .3s and.2s.
One thing i did notice is its showing a little pressure. I can make out the ejector slot from my bighorn bolt face.
I kinda just wanted to put it out there, its very good stuff for the money. Another good one to try in my opinion.