I placed this here in the AR section because I am looking for AR data. I have been loading for over 30 years and have a friend that bought some AR-Comp and some 55 gr bullets to use in his new AR 223. I have never used this powder and can't really find much data even from Alliant done with actual AR platforms. Alliant data is limited and looks like it was done with a bolt rifle from the velocities they list. Any help will be greatly appreciated.