I was playing around with 223 loads, heading towards spending a lot of time at range to perfect the load... What am I doing, 223 is a fun firearm, I don't compete with it, will never do long range, hell I can't see 200 yds, much less shoot 600
But if, my firearm "should" do better with 135 PF, that's an easy fix. I'll load it and test it.