Affordable .308 is nigh impossible to find... I suggest you consider a reloading press, or make friends with someone who has one!
I have a nice dillon 550 press, i stopped reloading through. Ive seen too much damage, from my reloads ive blown up one gun and had a close call in another, and ive seen another 5-6 various other damaged and blown up guns due to others reloads. Thankfully no one was hurt in any of these instances. Plus im pretty busy, and one day of overtime for me i can make enough cash to buy way more ammo than i can make in the same time!
Seriously, if this is true, sell your reloading gear now. You apparently don't have the temperament (OCD can be a good thing) for it.
Yikes... sounds like you should stay away from reloading. Jk
P&D had South African 7.62x51 surplus in 140 round battle packs for about .57/round recently.