Graybeard, Sierra has puiblished data for the 280AI,22-250AI,6mmAI 25-06AI plus many others so there is some guide lines for those rounds and maybe with Nosler making 280AI brass who know.
The first wildcat manual I got was made in 1959 plublished by Speers called Reloading Manual for Wildcat Cartridges they had a 25 Neidner other name was 25-06 and they had another called 7mmx06 was later called a 280.
As to posting unsafe load or as you say kidding myself I used Noslers or Sierra reloading manual data for my 280AI so if that data is unsafe how is the other data considered safe? I can only assume you don't agree with the reloading data that is published in those manuals for the 280AI or another Ackley/Wildcat they have data published for? For some reason their data supports the greater velocity I got with my 280AI and the amount of powder I used, and I cann't seem to find any mention of equal pressure maybe they are looking at something different they do mention the pro and cons on doing that certain caliber. Doesn't Jarrett sell loaded 280AI ammo.
Graybeard, I'm sorry that I gave published data for my 280AI but since this is a wildcat forum didn't understand your rules, won't happen again.