I don't see any advantage, and I like AI cartridges. The bigger the diameter of the bullet the less gain there is, except of course the lack of trimming and "cool factor".
I have a 338-06 A-Square and LOVE it. You get near WM performance with less powder, and cases are easy to form. I used old 270 WCF stuff a client had given me.
If you have a hankerin' for an Ackley may I suggest the Better Bob??
