New build caliber? : 22-250Ackley or 223 Ackley

[otnot]

I have a 223 wylde chambered 26 inch barrel that I could get 85.5 bergers up to 2900 without pressure and am currently having a new barrel chambered in 223ai for it. I'm curious to test and see how much faster it will be

M y next barrel is going to be a 30 inch. Did you read that article linked above? Here is a link to the chamber dimensions https://forum.accurateshooter.com/attachments/223remissflaurieholland169fbfin40380-xls.905097/