For top velocity with 150gn bullets, W748 and Alliant PowerPro 2000-MR work for me.
Seems I read that Pwr Pro 2000 is the same powder as CFR-223. Not sure about that, like them both.
DF
I have seen that, too, but have never tried the 2000 to test.
You did not "seen" anything, you "saw" it. A "creek" has water in it, a "crick" is what you get in your neck. Liberals with guns are nothing but hypocrites.