I have a bunch of 220 ELD-X laying around that I would like use for a subsonic load for a 10.5" AR. Anyone have a recipe for the 220 ELD-X? I'm having issues coming up with a CBTO or OAL measurement.
11.8 CFE-BLK. I had to go lower to Remain subsonic. I seat my 300 BO rounds to the little bumps on the side of an AR mag. I seat the bullet far enough that the shoulder barely Touches that bump and can feed. Hope this makes sense.
