I just bought myself a 308. I bought a bushnell tactical 6500 to put on it. I have a couple leo vx3's and mark 4's. I think this 6500 glass is as good as any of the leo's I have. Its not quite as good as my nightforce but then again its half the price. So far I am pleased with it.
I started reloading with a kit from walmart for like $250. Over the years i have found equipment, dies, etc. that i like better. It always seems to change every couple years with new and better equipment coming out. I would say start out with good equipment you can afford and work your way into it.
There is no budget it never ends.