6.5 Grendel versus 6mm ARC for whitetail

[LRRPF52]

I thought it was the SEALs cuz the guy in the Military Arms Channel video I referenced personally knows an active-duty SEAL who is "using" 6mm ARC (whether training, testing, or deployed — I couldn't discern).

There are SEALs in one of the DoD entities who likely put forth the solicitation, but not part of the SOCOM-side elements.

The other "DoD entities" are mostly from the Army, if my reading of the tea leaves is right. These elements were forced to cultivate a more cooperative relationship after a certain General took command of their parent organization, as there was a lot of competition and rivalry between them up until the 2000s.