So I noticed from the ingame stat displays that the supsonic rounds 300 blackout and 9x39 has the damage and penetration statistics similar to the 5.56x45. This is incorrect the supsonic version of 300 blackout has around 1/3 of the energy of 5.56x45 and worse penetration ballistics are obvious after this. It makes 5.56x45 obsolete compared to 300 blackout in CQB .