As far as reloading supplies, there are a few consumables that you'll need to have on hand. You'll need brass. You can either get spent brass at the range or from friends and reload that way, or purchase reconditioned or new empty cases. You'll need primers. Primers come in a variety of sizes, including small pistol, large pistol, small rifle and large rifle. If you reload a wide variety of rounds, you'll need to have all the appropriate primers on hand. You'll also need gunpowder, and you'll definitely need the kind of projectiles that you're looking to reload. Some people only reload hardball for practice, but buy factory hollow points for defense ammo. Others handload all of their ammunition, though this is a bit more common for the most singularly obsessed riflemen. That guy who sneers at anyone that doesn't shoot match-grade .408 Chey Tac that no one likes to talk to? That's the guy we're talking about. .
"A man's rights rest in three boxes: the ballot box, the jury box, and the cartridge box"