26.2 gr under a 75 Hornady BTHP, CCI 400 primer, Lapua brass gives me 2885 fps out of a Tikka 22" tube. .223 w/8 twist seated ~.030 off the lands. The 75 AMax is a bit more consistent. Alliant's max shows 26.4 gr.
At 300 yds on the initial test, 26.0 to 26.4 grs, I only had 3/8" or so of vertical.
Another wider accuracy node was at 25.0 to 25.6 gr.
I shot that at about 35 degrees so I can't tell you what it will do 50 degrees hotter.
With the AI, I don;t have a clue. However this range would look like a good starting point.
The powder has some graphite type fowling, but it cleans up really well.
Bruce
