I had D. Wilson spin up an 18in Satern 6.5G barrel for the LMT MRP platform. There is about 2MOA MOA shift from 5.56 barrel to 6.5G barrel.
I initially did this test at 25m with the optic zeroed for the 18in SS 5.56 barrel. The POI between the two calibers at 25M was barely discernable. I...