Hornady 7th edition. With the IMR 4895 50.3 gives 3100 FPS and Max is 51.9 at 3200 usually if you drop back from max it gives a better performance and better accuracy. Each gun is different and your mileage may vary.
You have w76 did you mean W760? if so that is no good for the smaller bullet, save it for the 180 and 200 grain. 4350 is not good for the 110 but it is pretty good for the 125. I HAVE used it, with good results. I choose the 125 because where I am it is windy, and that little extra helps.
Not listed but from Quick Load. 45 grains of RE10X gives you 3,066 FPS with a pressure rating of 54,165 PSI 47 grains is max with 3,189 FPS and 61,826 PSI Remember 62,000 is sammi for 308 WIN I did figure in the 18" barrel. These figures reflect that. 45 grains gives 99.68% burned powder and has a good pressure curve, should be good load. Somewhere from 43 grains to 45 should perform well for you. If you load a ladder with this, I would use .5 grains difference each load. EX: 43.5 44 44.5 45 Once you establish your node then tweak it with .2 -.3 grains difference.
There is not a load listed with 4064 even though it is a good powder for the 308. Problem is that is is not good with the smaller grain bullets. I ran it through Quick Load EX: 48grains gives a 100% load but only 2771 FPS that is because only 86% of the powder is burned. Burn rate its too slow. You will not get good performance with this powder and bullets combo.
You will loose 100 FPS or maybe a little more, with any load, since you have an 18" barrel.
but no worries. They will still be dead. Try the loads listed I got them from a Hornady book. 7th edition.