223 with cast bullets??

[Rushcreek]

I thought that it would be- thanks!
My previous AR cast experience is with the 6.8 and 7.62x39- both were easy button situations.

 

[Ian]

Or 22 grains of H-335, but no room to find the next node.

If those groups blow up horizontally with a little more, then you know what your load is with that combination and it's time to work on the launch a little more, making sure your necks are concentric after reloading and that the bullet and working on the launch details.