The curren t Nosler manual has loading data for the .280AI.

Try www.loaddata.com. You have to join but it is inexpensive and has loads for the 280 AI and anything else you can imagine. Ackley's books had quite a few loads if my memory serves me right. LoadData.com has 40 loads from 100 grain up. These are from Handlaoder #165 if you have one or access to one.

RL22 and 4831sc both work great with 140gr NBT's.

Need help with data for 280 Ackley. Am wanting to use 139 gr Hornady plastic tipped. Would prefer Reloader, IMR or Hercules powders. And yes, I have tried the search feature and can't get it to work. Any and all help would be appreciate. Thanks;
Mike Allred