Real close to the burn rates of RL10x and AA2015. I have used those in .223 for bolt guns and semi autos. I get consistently good accuracy from both the RL10 and AA2105. I don't have a chrono but I'm guessing the velocity is less than AA2460, 3031 or Benchmark but you would load more powder with 2460, 3031 and Benchmark. I load 23.2 for bolt guns and 23.4 for gas guns under a 55 grain bullet. Those are close to max loads if not just slightly over as per the loading manuals. I'm betting 322 will be close to the same and you will get equivalent accuracy.
kwg
Last edited by kwg020; 02/18/21.
