I am want to work up a load for my CMMG M4 16 " 1:9 twist barrel AR 15. I have approx 500 rounds of New Lake City 223 brass and 200 of Noslers new 64 gr Bonded Solid Base bullets with cannelure. Got load info directly from Nosler but there test gun is a 20" barrel with 1:12 twist. Also there data is using Nosler brass and WSR primers. I will be using CCI NO 400 SR primers. Any one have experience loading LC 223. I think I need to get more info before my friend starts loading these . There recipe calls for CFE223 - cant remember the grains,but again I am using all different components