Can tell you my Speer manual shows 16 gr start and 20 gr max with SR4759 for their 100 gr bullet in the .308. Speer lists IMR4198 for reduced loads with 110, 125 and 135 gr speer bullets. But then my maual shows 21 gr start and 25 gr max with SR4759 for their 150 Gr Speer bullets.
The 30 grain SR4759 load show in reloader nest data posted before me seems a might bit high to me.
I've used SR4759 for reduced loads in the past....can't remember using it for .308......but recall always staying around 19 grains in other cartridges with light jacketed bullets. For example, Speer shows 15 gr start and 19 gr max for 110 gr bullets in a 300 Savage.