I tried it in my 280AI, but mine didn't like it. I started at the max load for standard 280 and worked up from there. I think it might be just a little slow for the 280AI. I'm currently working with RL17 and so far the results are promising.
I tried h1000 with my ai.. loves it.. decent velocities.. nothing special at 2750... but shoots the 168 bergers and LRACCUBONDS into a .30 inch group at 200.. and very good results out to 1175.. I run a brux 26 with a 1/9 twist rate
Ive got a .280AI that I really enjoy. Tried H1000 with 160grn. Accubonds and 162 Maxes. Never could get what I wanted. I've got a 24" Kreiger 1-9 twist. It loves H4831 with Accubonds or Maxes. Will toss em between 2913 and 2919 consistently. I'm not gonna post my load data because it's a little warm. Just under primer cratering. Good safe load. H4831 meters much better. I'm sure it would do the same. I'm just running what I have.