When I reload a cartridge I always use the Hornady (Stoney Point)overall length case. I'm starting to reload a 280 A.I. and I don't believe Hornady makes one for the A.I. What do you guys use?

Simply make one yourself. Take a fired case drill out the primer pocket and tap the hole.

I "BELIEVE" the thread is a 5/16-36. Use an "I" drill or you can probably get by iwith a 17/64"