First, you've asked several times for OAL.
You will find out, that the ideal COAL will be decided by your boolit and your Rifle...and if you are using PC, that'll add to the formula...So we can't give you a COAL. I believe I used a 0.010" jump to the lands, so I'd have reliable chambering and reliable ejection of a unfired round.
To successfully get a AR to cycle ammo (and be accurate), you need a slower burning powder that can be downloaded. From what I've read, one real good powder is H4895. Hodgdon says you can download it to 60% of their MAX load. It should be said that, IMR4895 is not the same, although they are similar, I don't think Dupont recommends the 60% download thing.
Here are some notes from my initial testing. You will need to do similar testing with your rifle, as it is a different rifle and you will get different results. Once you know what cycles your gun, you can continue with the usual ladder testing to find the most accurate load for your Boolit and your Rifle. You will probably find that the window is quite narrow for good accuracy. Good Luck
More info:
http://castboolits.gunloads.com/show...load-data-help
Want more info, type "AR cast" into google custom search box.