Here are a few lessons I learned since starting about a year and a half ago:
- The basics are fairly easy to learn from a book. The troubleshooting is what takes time. Some calibers I had no trouble with (9mm), others I have had continual problems with like crimp jump (44 mag) and bullet stabilization (full house 10mm). Some of the problems have to do with plated bullets, others could be the dies, some of it could be me.
- Plated bullets (Xtreme in my case) are cheap and have worked fine for me with 9mm and 357/.38. Coated bullets have worked better for me for .44, .45 LC, and 10mm. If I were to do it over, I would just do all coated.
- In the reading material I started with, not enough information was given regarding neck tension. The emphasis was on crimp. Calibers that only need a light crimp (9mm) this is no big deal. Calibers that need strong neck tension (44mag) this is a problem. I had to do a lot of extra reading in my troubleshooting process to figure this out.
- Starting with a Lee turret press was the right call for me. Single stage would have driven me crazy. The Lee turret can be used like a single stage or like an auto indexing turret. Caliber changes are super fast. I would not want to load any slower than a turret (next purchase is going to be a Dillon XL 650 - turret isn't going fast enough for me)
- If you go with Lee dies, take their die setup instructions as a basic starting point but realize you may have to tweak quite a bit. I have found much better info on die setup on forums than in their provided instructions.
So in short, if I had just started with 9mm and no other calibers, I would have said reloading is easy. If I would have started with 44 mag (with Lee die instructions and xtreme plated bullets), I would have said reloading is very hard due to the issues I have run into. Different calibers can have different "issues".