As a new reloader, I'm guessing that you're going to get some satisfactory groups just from getting the case, primer, powder and bullet combo just right. With a good gun, I'll bet you can get half inch groups right there.

In my opinion, adjusting the seating die over and over again for different bullets will become a headache fast.

I would work with a few bullets and powder combos. Decide which bullet shoots the best. Then adjust your die for that bullet's perfect seating depth. Then lock the seating die and never touch it again