168 AMAX, M118 Special Ball 173gr, M118LR, M118LR 175gr pulled and powder replaced with 42.5 Varget.
Yes, the 173gr M118 does not group well in comparison...
In itself, I have not found M118LR to be consistent: measuring a box of 20 rounds, COAL varied from 2.808-2.824; furthermore, of the 5 rounds of M118LR I pulled, 4 measured 42.5gr of powder, while the 5th measured 43.6.