I cheated. We developed the next gen rifles for the ESSO project and that cartridge went on to the next generation in ELR-SR projects. Our cartridge and bullet designed was selected. Also its our software in the devices they use for ballistics. Lastly, I simply asked my friends at the USSS some of which are CS.That is Jedi level skills.
I cant even make out an SR-25 in the previous pix and I own one.
It does look like an Acog (which was my first guess), but I had it confirmed its this exact model. https://www.trijicon.com/products/details/ta648-308h
I also confirmed through my sources both at Steiner and USSS that the binoculars they have are Steiner M2080s they purchased 3 years ago.
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