Hey Gander.
40grn V-max, 223 Win brass, Rem 7 1/2 primer, OAL 2.238, 25.7 grains of Alliant 10X -------- This is above listed MAX. I use this load in my bushmaster which has the 5.56 chambering and is is completely safe (no preasure signs)
Alliant list the max load as 25.3 grains and OAL of 2.2.
I am getting great acuracy and very low E.S. (18) and S.D.(8), this is by far the best I have achived in the AR.