never said its do or die thing.Just stating I want all I can get ,as is human nature. Do I expect to achieve 5 in 1" at 300,not really. That remark was simply reply to question and my way of saying I aim for perfect even if its not obtainable. Hey a direct shoulder shot at aby range will do the job if good bullet and not so far out its lacking power .The desire for perfect just adds to ablity and confidence in firearm.
After I get a very good combo working as close as Possible to great. I will keep trying different loads to see if I can improve and even tinkering with gun some. As a drag racing crew chief its just my nature to try and improve anything I work with. There is not lot you can do with AR to improve accuracy except barrel and trigger. Always fun to try new things,plus good reason to do more shooting.
Like I said, good luck with your quest.