It all comes down to accuracy expectations and budget.
If you are on a budget purchase a RCBS rockchucker Kit and add to the kit as needed.
If you are going to be shooting extremely long range and require the most accurate ammo you can assemble then you need better equipment. my .02 cents
1. Forster relaoding die with micrometer seater
2. Forster Co AX press
3. Loading blocks
4. case lube
5. Vibratory cleaner, Sonic cleaner, or wet tumbler. Your choice here. Many differing opinions I like wet tumbling.
6. Chamfer and priming tool. Sinclair makes nice ones
7. pocket uniformer and primer pocket cleaner. Should come with a kit or any one will do
8.Case trimmer. If you are not doing high volume a L.E. wison with micrometer will do. If you want the best then Giraud tool.
9 dial calipers. get a set on sale at midway or Amazon.
10. Gauges. seating depth if you want to chase the lands and headspace gauges. You will want a bullet comparator as well. Hornady makes these and are popular.
11. Powder dispenser. Many use a RCBS chargemaster. If you are shooting extremely long then I would look into a autotrickler V3 with a satorious scale.
12. various loading manuals. Speer, Sierra, etc... all have useful information.
if you want to get more accuracy then you can turn the necks of your cases and use a forming mandrel to control exact neck tension,.
I am sure I left some things out but others should chime in.