I've used BL(C)-2 and WC-846 for years for 7.62/ .308 in a CETME and M1Aicon. Very good accuracy with 45gr with 147gr M80 pulls and 44gr with 168gr SMK. Each lot of the WC-846 is different and not directly comparable to BL(C)-2. You'll want to work up your loads to that point yourself. They meter very well through a Dillon powder measure.

Eagle 1