RE: How much of an investment to start reloading??
Gosh, its hard telling. You can get started for less than 100 dollars with a Lee setup or as much as 600dollars for topnotch RCBS setup. I started out thinking I just wanted to match factory accuracy and it turned out to be a disease that can' t be cured. Really depends on your budge.
I recommend the RockChucker setup. You need a set of calibers, and a primer brush. You can do this for 250 dollars. Sooner or later you will want to upgrade your scale, and your trimmer. You still need dies. Buy Full Length ones. RCBS are good, not great but good.
For powder the most popular for that 30-06 bolt is IMR4350.