A 280 LCD works for the 280 AI. That's what I use. For other cases sometimes I don't even bother modifying the die. For a 6.5 Jap I just use a 260 Rem LCD. It only sizes half the neck but that can be a good thing for accuracy and the bullets are only seated about halfway in the neck anyway. Same situation using a 35 Rem LCD to size 357 Herrett cases.