So I went and ran some 75gr hpbt from Everglades ammo through my ar with a sionics 16” upper. Using h322,cci #41, and mix brass. I like the looks of 21.8-22.2. Those I circled two that I knew were off. The buttstock came unlocked on me on the third set on 22.0 and 22.2. I also really like the grouping at 23.0. My poa for that was the bottom left corner of the A box where I put an x after the fact. That is a whole grain above max though. Still not showing pressure to bad. Which one would you guys go with? It tells me I think I should try 22.0. But 23 is also really tempting. Thanks guys.
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