I would like community opinion on these topics.
I will likely make Sandbox options for all of these, and still I would like your opinion on "default" settings.

1) Should the Ammo Reloading Set be craftable or found in the world only? What should be skill requirements if so?

2) What would be the best approach to resource acquisition? Do you want separate primers, bullets, casings? If casings, should they be of different caliber?

3) If we go with different casings, should there be a separate crafting workbench to produce casings, or should they be lootable only?

4) Should we tie the "ammo crafting/reloading" to vanilla "reloading" skill ("handling ammo"), or to metalworking?

Any other feedback and suggestions are welcome.