Copy Cat HD SBR 5.56 load

[Austan]

Does anyone have a copy cat load for the (Hornady BLACK 5.56x45mm NATO 75 Grain Interlock HD SBR) ammo? Manufacturer #: 81296
This ammo claims a reduced sound report and lowered visual signature. I expect it's a specific powder being used with the speed at 2300 fps. Does anyone know what powder they are using, whether something new or just proprietary? Thanks.

 

[308Gunner]

I don’t know the load but in my DSU I can’t really tell a difference in it and the regular 75gr. I can tell you that I was not impressed with the performance on pigs, I used this load out of a helicopter at around 75ft.