One thing you'll learn is that each rifle is its own individual beast--SPECIFIC load data for an accurate load in my rifle is not likely to be accurate in your rifle. That said, there are some very tried and true recipes for 308.

First I'd suggest this source:

.308 Win Cartridge Guide within AccurateShooter.com

Rifle is really a different beast.

And since you're reloading for an AR type rig, I'd watch the David Tubb videos on youtube:


It will help you understand the very different world of reloading bottlenecked rifle cartridges for accuracy.

Third, I'd suggest picking up a single stage press. While you can crank out some good ammo from a Dillon I'd suggest starting out with a single stage press so you really learn and understand each step necessary for bottleneck rifle reloading. Especially if you interested in maximum accuracy.

Good luck! There's nothing more satisfying than shooting a great group with your own handloads: