Come on guys and gals is no one reloading for this I have a proof 20in 22 arc that shoots the factory 62gr eldvt rounds great but I want to reload for this. I have 300 once fired 22 arc cases now but the load data on hornady book isn’t enough for me. I have tried cfe223 getting the velocity same as the factory round but I’m getting plunger marks primer isn’t flat but I have never loaded for a ar15 so I’m not 100% when to stop any help will b great thanks in advance