I am working on this (223 ar casting) I am still a noob and not sure I am on a good path with it. A gas check might have been a better route is one thing I should have gone with
ive tried h335 at 19gr and am getting unburnt powder. Varget@ 22 was ok
I tried these in a break action hr1871 20” barrel I need to make more and try in the ar. And dig Deeper into better powder options and get a harder alloy.
View attachment 424092Basically what I’m finding is it’s not a easy accomplishment to get to
Also Arsenal molds are heavy to work with ( now I sound like a crumby millennial)